Millions rally for unity against terrorism in France

Global Community Steps Out for Paris Unity March

PARIS (AP) - More than a million people surged through the boulevards of Paris behind dozens of world leaders walking arm-in-arm Sunday in a rally for unity described as the largest demonstration in French history. Millions more marched around the country and the world to repudiate three days of terror that killed 17 people and changed France.

Amid intense security and with throngs rivaling those that followed the liberation of Paris from the Nazis, the city became "the capital of the world" for a day, on a planet increasingly vulnerable to such cruelty.

More than 40 world leaders headed the somber procession - Israeli Prime Minister Benjamin Netanyahu and Palestinian President Mahmoud Abbas; Ukrainian President Petro Poroshenko and Russian Foreign Minister Sergey Lavrov - setting aside their differences with a common rallying cry: We stand together against barbarity, and we are all Charlie.

At least 1.2 million to 1.6 million people streamed slowly through the streets behind them and across France to mourn the victims of deadly attacks on the satirical newspaper Charlie Hebdo, a kosher supermarket and police officers - violence that tore deep into the nation's sense of security in a way some compared to Sept. 11 in the United States.

"Our entire country will rise up toward something better," French President Francois Hollande said.

Details of the attacks continued to emerge, with new video showing one of the gunmen pledging allegiance to the Islamic State group and detailing how the attacks were going to unfold. That gunman, Amedy Coulibaly, was also linked to a new shooting, two days after he and the brothers behind the Charlie Hebdo massacre were killed in nearly simultaneous police raids.

The attacks tested France's proud commitment to its liberties, which authorities may now curtail to ensure greater security. Marchers recognized this as a watershed moment.

"It's a different world today," said Michel Thiebault, 70.

Illustrating his point, there were cheers Sunday for police vans that wove through the crowds - a rare sight at the many demonstrations that the French have staged throughout their rebellious history, when protesters and police are often at odds.

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Millions rally for unity against terrorism in France
PARIS, FRANCE - JANUARY 11: A general view of Place de la Republique during the mass unity rally on January 11, 2015 in Paris, France. An estimated one million people have converged in central Paris for the Unity March joining in solidarity with the 17 victims of this week's terrorist attacks in the country. President Francois Hollande of France led the march and was joined by world leaders in a sign of unity. The terrorist acts started on Wednesday with the attack on the French satirical magazine Charlie Hebdo, killing 12, and ended on Friday with sieges at a printing company in Dammartin en Goele and a Kosher supermarket in Paris with four hostages and three suspects being killed. A fourth suspect, Hayat Boumeddiene, 26, escaped and is wanted in connection with the murder of a policewoman. (Photo by Aurelien Meunier/Getty Images)
PARIS, FRANCE - JANUARY 11: A general view of Place de la Republique during the mass unity rally on January 11, 2015 in Paris, France. An estimated one million people have converged in central Paris for the Unity March joining in solidarity with the 17 victims of this week's terrorist attacks in the country. President Francois Hollande of France led the march and was joined by world leaders in a sign of unity. The terrorist acts started on Wednesday with the attack on the French satirical magazine Charlie Hebdo, killing 12, and ended on Friday with sieges at a printing company in Dammartin en Goele and a Kosher supermarket in Paris with four hostages and three suspects being killed. A fourth suspect, Hayat Boumeddiene, 26, escaped and is wanted in connection with the murder of a policewoman. (Photo by Aurelien Meunier/Getty Images)
PARIS, FRANCE - JANUARY 11: A memorial is seen near the Charlie Hebdo offices during the mass unity rally on January 11, 2015 in Paris, France. An estimated one million people have converged in central Paris for the Unity March joining in solidarity with the 17 victims of this week's terrorist attacks in the country. President Francois Hollande of France led the march and was joined by world leaders in a sign of unity. The terrorist acts started on Wednesday with the attack on the French satirical magazine Charlie Hebdo, killing 12, and ended on Friday with sieges at a printing company in Dammartin en Goele and a Kosher supermarket in Paris with four hostages and three suspects being killed. A fourth suspect, Hayat Boumeddiene, 26, escaped and is wanted in connection with the murder of a policewoman. (Photo by Aurelien Meunier/Getty Images)
PARIS, FRANCE - JANUARY 11: A memorial is seen near the Charlie Hebdo offices during the mass unity rally on January 11, 2015 in Paris, France. An estimated one million people have converged in central Paris for the Unity March joining in solidarity with the 17 victims of this week's terrorist attacks in the country. President Francois Hollande of France led the march and was joined by world leaders in a sign of unity. The terrorist acts started on Wednesday with the attack on the French satirical magazine Charlie Hebdo, killing 12, and ended on Friday with sieges at a printing company in Dammartin en Goele and a Kosher supermarket in Paris with four hostages and three suspects being killed. A fourth suspect, Hayat Boumeddiene, 26, escaped and is wanted in connection with the murder of a policewoman. (Photo by Aurelien Meunier/Getty Images)
PARIS, FRANCE - JANUARY 11: A memorial is seen near the Charlie Hebdo offices during the mass unity rally on January 11, 2015 in Paris, France. An estimated one million people have converged in central Paris for the Unity March joining in solidarity with the 17 victims of this week's terrorist attacks in the country. President Francois Hollande of France led the march and was joined by world leaders in a sign of unity. The terrorist acts started on Wednesday with the attack on the French satirical magazine Charlie Hebdo, killing 12, and ended on Friday with sieges at a printing company in Dammartin en Goele and a Kosher supermarket in Paris with four hostages and three suspects being killed. A fourth suspect, Hayat Boumeddiene, 26, escaped and is wanted in connection with the murder of a policewoman. (Photo by Aurelien Meunier/Getty Images)
PARIS, FRANCE - JANUARY 11: A memorial is seen near the Charlie Hebdo offices during the mass unity rally on January 11, 2015 in Paris, France. An estimated one million people have converged in central Paris for the Unity March joining in solidarity with the 17 victims of this week's terrorist attacks in the country. President Francois Hollande of France led the march and was joined by world leaders in a sign of unity. The terrorist acts started on Wednesday with the attack on the French satirical magazine Charlie Hebdo, killing 12, and ended on Friday with sieges at a printing company in Dammartin en Goele and a Kosher supermarket in Paris with four hostages and three suspects being killed. A fourth suspect, Hayat Boumeddiene, 26, escaped and is wanted in connection with the murder of a policewoman. (Photo by Aurelien Meunier/Getty Images)
PARIS, FRANCE - JANUARY 11: A memorial is seen near the Charlie Hebdo offices during the mass unity rally on January 11, 2015 in Paris, France. An estimated one million people have converged in central Paris for the Unity March joining in solidarity with the 17 victims of this week's terrorist attacks in the country. President Francois Hollande of France led the march and was joined by world leaders in a sign of unity. The terrorist acts started on Wednesday with the attack on the French satirical magazine Charlie Hebdo, killing 12, and ended on Friday with sieges at a printing company in Dammartin en Goele and a Kosher supermarket in Paris with four hostages and three suspects being killed. A fourth suspect, Hayat Boumeddiene, 26, escaped and is wanted in connection with the murder of a policewoman. (Photo by Aurelien Meunier/Getty Images)
PARIS, FRANCE - JANUARY 11: A memorial is seen near the Charlie Hebdo offices during the mass unity rally on January 11, 2015 in Paris, France. An estimated one million people have converged in central Paris for the Unity March joining in solidarity with the 17 victims of this week's terrorist attacks in the country. President Francois Hollande of France led the march and was joined by world leaders in a sign of unity. The terrorist acts started on Wednesday with the attack on the French satirical magazine Charlie Hebdo, killing 12, and ended on Friday with sieges at a printing company in Dammartin en Goele and a Kosher supermarket in Paris with four hostages and three suspects being killed. A fourth suspect, Hayat Boumeddiene, 26, escaped and is wanted in connection with the murder of a policewoman. (Photo by Aurelien Meunier/Getty Images)
PARIS, FRANCE - JANUARY 11: A general view of the mass unity rally on January 11, 2015 in Paris, France. An estimated one million people have converged in central Paris for the Unity March joining in solidarity with the 17 victims of this week's terrorist attacks in the country. President Francois Hollande of France led the march and was joined by world leaders in a sign of unity. The terrorist acts started on Wednesday with the attack on the French satirical magazine Charlie Hebdo, killing 12, and ended on Friday with sieges at a printing company in Dammartin en Goele and a Kosher supermarket in Paris with four hostages and three suspects being killed. A fourth suspect, Hayat Boumeddiene, 26, escaped and is wanted in connection with the murder of a policewoman. (Photo by Aurelien Meunier/Getty Images)
PARIS, FRANCE - JANUARY 11: A general view of the mass unity rally on January 11, 2015 in Paris, France. An estimated one million people have converged in central Paris for the Unity March joining in solidarity with the 17 victims of this week's terrorist attacks in the country. President Francois Hollande of France led the march and was joined by world leaders in a sign of unity. The terrorist acts started on Wednesday with the attack on the French satirical magazine Charlie Hebdo, killing 12, and ended on Friday with sieges at a printing company in Dammartin en Goele and a Kosher supermarket in Paris with four hostages and three suspects being killed. A fourth suspect, Hayat Boumeddiene, 26, escaped and is wanted in connection with the murder of a policewoman. (Photo by Aurelien Meunier/Getty Images)
PARIS, FRANCE - JANUARY 11: A general view of the mass unity rally on January 11, 2015 in Paris, France. An estimated one million people have converged in central Paris for the Unity March joining in solidarity with the 17 victims of this week's terrorist attacks in the country. President Francois Hollande of France led the march and was joined by world leaders in a sign of unity. The terrorist acts started on Wednesday with the attack on the French satirical magazine Charlie Hebdo, killing 12, and ended on Friday with sieges at a printing company in Dammartin en Goele and a Kosher supermarket in Paris with four hostages and three suspects being killed. A fourth suspect, Hayat Boumeddiene, 26, escaped and is wanted in connection with the murder of a policewoman. (Photo by Aurelien Meunier/Getty Images)
PARIS, FRANCE - JANUARY 11: A general view of the mass unity rally on January 11, 2015 in Paris, France. An estimated one million people have converged in central Paris for the Unity March joining in solidarity with the 17 victims of this week's terrorist attacks in the country. President Francois Hollande of France led the march and was joined by world leaders in a sign of unity. The terrorist acts started on Wednesday with the attack on the French satirical magazine Charlie Hebdo, killing 12, and ended on Friday with sieges at a printing company in Dammartin en Goele and a Kosher supermarket in Paris with four hostages and three suspects being killed. A fourth suspect, Hayat Boumeddiene, 26, escaped and is wanted in connection with the murder of a policewoman. (Photo by Aurelien Meunier/Getty Images)
PARIS, FRANCE - JANUARY 11: A general view of the mass unity rally on January 11, 2015 in Paris, France. An estimated one million people have converged in central Paris for the Unity March joining in solidarity with the 17 victims of this week's terrorist attacks in the country. President Francois Hollande of France led the march and was joined by world leaders in a sign of unity. The terrorist acts started on Wednesday with the attack on the French satirical magazine Charlie Hebdo, killing 12, and ended on Friday with sieges at a printing company in Dammartin en Goele and a Kosher supermarket in Paris with four hostages and three suspects being killed. A fourth suspect, Hayat Boumeddiene, 26, escaped and is wanted in connection with the murder of a policewoman. (Photo by Aurelien Meunier/Getty Images)
PARIS, FRANCE - JANUARY 11: Pens and candles are seen on the floor on January 11, 2015, as people gather for the start of a unity march in Paris, France. Huge crowds and some 40 world leaders are expected in Paris for a unity march after 17 people were killed during three days of deadly terror attacks. (Photo by Dursun Aydemir/Anadolu Agency/Getty Images)
PARIS, FRANCE - JANUARY 11: People gather for the start of a unity march in Paris, France on January 11, 2015 as French police take security measures in the city. Huge crowds and some 40 world leaders are expected in Paris for a unity march after 17 people were killed during three days of deadly terror attacks. (Photo by Dursun Aydemir/Anadolu Agency/Getty Images)
PARIS, FRANCE - JANUARY 11: French police officer stands guard on January 11, 2015, as people gather for the start of a unity march in Paris, France. Huge crowds and some 40 world leaders are expected in Paris for a unity march after 17 people were killed during three days of deadly terror attacks. (Photo by Dursun Aydemir/Anadolu Agency/Getty Images)
PARIS, FRANCE - JANUARY 11: People gather for the start of a unity march in Paris, France on January 11, 2015 as French police take security measures in the city. Huge crowds and some 40 world leaders are expected in Paris for a unity march after 17 people were killed during three days of deadly terror attacks. (Photo by Dursun Aydemir/Anadolu Agency/Getty Images)
(Photo credit should read JOEL SAGET/AFP/Getty Images)
PARIS, FRANCE - JANUARY 11: People gather for the start of a unity march in Paris, France on January 11, 2015 as French police take security measures in the city. Huge crowds and some 40 world leaders are expected in Paris for a unity march after 17 people were killed during three days of deadly terror attacks. (Photo by Dursun Aydemir/Anadolu Agency/Getty Images)
PARIS, FRANCE - JANUARY 11: French police stand guard on January 11, 2015, as people gather for the start of a unity march in Paris, France. Huge crowds and some 40 world leaders are expected in Paris for a unity march after 17 people were killed during three days of deadly terror attacks. (Photo by Dursun Aydemir/Anadolu Agency/Getty Images)
PARIS, FRANCE - JANUARY 11: French police soldier stands guard on January 11, 2015, as people gather for the start of a unity march in Paris, France. Huge crowds and some 40 world leaders are expected in Paris for a unity march after 17 people were killed during three days of deadly terror attacks. (Photo by Dursun Aydemir/Anadolu Agency/Getty Images)
(Photo credit should read RAYMOND ROIG/AFP/Getty Images)
PARIS, FRANCE - JANUARY 11: French police officer stands guard on January 11, 2015, as people gather for the start of a unity march in Paris, France. Huge crowds and some 40 world leaders are expected in Paris for a unity march after 17 people were killed during three days of deadly terror attacks. (Photo by Dursun Aydemir/Anadolu Agency/Getty Images)
(Photo credit should read BERTRAND GUAY/AFP/Getty Images)
(Photo credit should read JOEL SAGET/AFP/Getty Images)
(Photo credit should read RAYMOND ROIG/AFP/Getty Images)
(Photo credit should read RAYMOND ROIG/AFP/Getty Images)
(Photo credit should read RAYMOND ROIG/AFP/Getty Images)
People attend before a rally in Rennes, western France, on January 11, 2015, as tens of thousands of people stage rallies across France following four days of terror and twin siege dramas that claimed 17 victims, including the victims of the first attack by armed gunmen on the offices of French satirical newspaper Charlie Hebdo in Paris on January 7. AFP PHOTO / JEAN-FRANCOIS MONIER (Photo credit should read JEAN-FRANCOIS MONIER/AFP/Getty Images)
UMP right-wing party member Francois Baroin (3rdL), French Socialist Party (PS) first secretary Jean-Christophe Cambadelis (5thL), UMP right-wing party member Jean-Francois Cope (C), Roger Cukierman, President of the CRIF (Representative Council of France's Jewish Associations), former French employers union MEDEF president Laurence Parisot, Jean-Paul Huchon President of the Ile de France region, UMP right-wing party member Valerie Pecresse, the Mayor of Lille and Socialist Party member Martine Aubry, Hassen Chalghoumi, Imam of the northern Paris suburb of Drancy and president of the French Association of Imams, French writer Marek Halter, UMP right-wing party member Eric Woerth, Joel Mergui, president of the Central Jewish Consistory of France and the Rector of Paris' Mosque Dalil Boubakeur (front) take part in a Unity rally Marche Republicaine in Paris on January 11, 2015 in tribute to the 17 victims of a three-day killing spree by homegrown Islamists. The killings began on January 7 with an assault on the Charlie Hebdo satirical magazine in Paris that saw two brothers massacre 12 people including some of the country's best-known cartoonists, the killing of a policewoman and the storming of a Jewish supermarket on the eastern fringes of the capital which killed 4 local residents. AFP PHOTO / THOMAS SAMSON (Photo credit should read THOMAS SAMSON/AFP/Getty Images)
PARIS, FRANCE - JANUARY 11: French President Francois Hollande (R) welcomes German Chancellor Angela Merkel at the Elysee Palace before attending a Unity rally in tribute to the 17 victims of a three-day killing spree by homegrown Islamists on January 11, 2015 in Paris, France. A mass unity rally to be held in Paris following the recent terrorist attacks on January 11, 2015 in Paris, France. An estimated one million people are expected to converge in central Paris for the Unity March joining in solidarity with the 17 victims of this week's terrorist attacks in the country. French President Francois Hollande will lead the march and will be joined by world leaders in a sign of unity. The terrorist atrocities started on Wednesday with the attack on the French satirical magazine Charlie Hebdo, killing 12, and ended on Friday with sieges at a printing company in Dammartin en Goele and a Kosher supermarket in Paris with four hostages and three suspects being killed. A fourth suspect, Hayat Boumeddiene, 26, escaped and is wanted in connection with the murder of a policewoman. (Photo by Thierry Chesnot/Getty Images)
Demonstrators hold placards as they take part in a protest outside the Kizilay Square in Ankara on January 11, 2015 in tribute to the 12 people killed at terror attack on Charlie Hebdo offices in Paris. AFP PHOTO/ADEM ALTAN (Photo credit should read ADEM ALTAN/AFP/Getty Images)
German Chancellor Angela Merkel (2L), Belgian Prime Minister Charles Michel (3L), British Prime Minister David Cameron (4L) leave the Elysee Palace before attending a Unity rally Marche Republicaine on January 11, 2015 in Paris in tribute to the 17 victims of a three-day killing spree by homegrown Islamists. The killings began on January 7 with an assault on the Charlie Hebdo satirical magazine in Paris that saw two brothers massacre 12 people including some of the country's best-known cartoonists, the killing of a policewoman and the storming of a Jewish supermarket on the eastern fringes of the capital which killed 4 local residents. AFP PHOTO / DOMINIQUE FAGET (Photo credit should read DOMINIQUE FAGET/AFP/Getty Images)
(FromL) French Prime minister Manuel Valls, French President Francois Hollande, Paris Mayor Anne Hidalgo, European Parliament President Martin Schulz, Senegal President Macky Sall and Turkish Prime Minister Ahmet Davutoglu leave the Elysee Palace before attending a Unity rally Marche Republicaine on January 11, 2015 in Paris in tribute to the 17 victims of a three-day killing spree by homegrown Islamists. The killings began on January 7 with an assault on the Charlie Hebdo satirical magazine in Paris that saw two brothers massacre 12 people including some of the country's best-known cartoonists, the killing of a policewoman and the storming of a Jewish supermarket on the eastern fringes of the capital which killed 4 local residents. AFP PHOTO / DOMINIQUE FAGET (Photo credit should read DOMINIQUE FAGET/AFP/Getty Images)
People hold signs and the French flag as they gather at the Place de la Nation during the Unity rally Marche Republicaine on January 11, 2015 in Paris in tribute to the 17 victims of a three-day killing spree by homegrown Islamists. The killings began on January 7 with an assault on the Charlie Hebdo satirical magazine in Paris that saw two brothers massacre 12 people including some of the country's best-known cartoonists, the killing of a policewoman and the storming of a Jewish supermarket on the eastern fringes of the capital which killed 4 local residents. AFP PHOTO / MARTIN BUREAU (Photo credit should read MARTIN BUREAU/AFP/Getty Images)
French President Francois Hollande (R) welcomes Israeli Prime Minister Benjamin Netanyahu (L) at the Elysee Palace before attending a Unity rally Marche Republicaine on January 11, 2015 in Paris in tribute to the 17 victims of a three-day killing spree by homegrown Islamists. The killings began on January 7 with an assault on the Charlie Hebdo satirical magazine in Paris that saw two brothers massacre 12 people including some of the country's best-known cartoonists, the killing of a policewoman and the storming of a Jewish supermarket on the eastern fringes of the capital which killed 4 local residents. AFP PHOTO / MATTHIEU ALEXANDRE (Photo credit should read MATTHIEU ALEXANDRE/AFP/Getty Images)
PARIS, FRANCE - JANUARY 11: A general view of Place de la Republique during the mass unity rally on January 11, 2015 in Paris, France. An estimated one million people have converged in central Paris for the Unity March joining in solidarity with the 17 victims of this week's terrorist attacks in the country. President Francois Hollande of France led the march and was joined by world leaders in a sign of unity. The terrorist acts started on Wednesday with the attack on the French satirical magazine Charlie Hebdo, killing 12, and ended on Friday with sieges at a printing company in Dammartin en Goele and a Kosher supermarket in Paris with four hostages and three suspects being killed. A fourth suspect, Hayat Boumeddiene, 26, escaped and is wanted in connection with the murder of a policewoman. (Photo by Aurelien Meunier/Getty Images)
PARIS, FRANCE - JANUARY 11: A general view of Place de la Republique during the mass unity rally on January 11, 2015 in Paris, France. An estimated one million people have converged in central Paris for the Unity March joining in solidarity with the 17 victims of this week's terrorist attacks in the country. President Francois Hollande of France led the march and was joined by world leaders in a sign of unity. The terrorist acts started on Wednesday with the attack on the French satirical magazine Charlie Hebdo, killing 12, and ended on Friday with sieges at a printing company in Dammartin en Goele and a Kosher supermarket in Paris with four hostages and three suspects being killed. A fourth suspect, Hayat Boumeddiene, 26, escaped and is wanted in connection with the murder of a policewoman. (Photo by Aurelien Meunier/Getty Images)
PARIS, FRANCE - JANUARY 11: A general view of Place de la Republique during the mass unity rally on January 11, 2015 in Paris, France. An estimated one million people have converged in central Paris for the Unity March joining in solidarity with the 17 victims of this week's terrorist attacks in the country. President Francois Hollande of France led the march and was joined by world leaders in a sign of unity. The terrorist acts started on Wednesday with the attack on the French satirical magazine Charlie Hebdo, killing 12, and ended on Friday with sieges at a printing company in Dammartin en Goele and a Kosher supermarket in Paris with four hostages and three suspects being killed. A fourth suspect, Hayat Boumeddiene, 26, escaped and is wanted in connection with the murder of a policewoman. (Photo by Aurelien Meunier/Getty Images)
PARIS, FRANCE - JANUARY 11: A general view of Place de la Republique during the mass unity rally on January 11, 2015 in Paris, France. An estimated one million people have converged in central Paris for the Unity March joining in solidarity with the 17 victims of this week's terrorist attacks in the country. President Francois Hollande of France led the march and was joined by world leaders in a sign of unity. The terrorist acts started on Wednesday with the attack on the French satirical magazine Charlie Hebdo, killing 12, and ended on Friday with sieges at a printing company in Dammartin en Goele and a Kosher supermarket in Paris with four hostages and three suspects being killed. A fourth suspect, Hayat Boumeddiene, 26, escaped and is wanted in connection with the murder of a policewoman. (Photo by Aurelien Meunier/Getty Images)
PARIS, FRANCE - JANUARY 11: A general view of Place de la Republique during the mass unity rally on January 11, 2015 in Paris, France. An estimated one million people have converged in central Paris for the Unity March joining in solidarity with the 17 victims of this week's terrorist attacks in the country. President Francois Hollande of France led the march and was joined by world leaders in a sign of unity. The terrorist acts started on Wednesday with the attack on the French satirical magazine Charlie Hebdo, killing 12, and ended on Friday with sieges at a printing company in Dammartin en Goele and a Kosher supermarket in Paris with four hostages and three suspects being killed. A fourth suspect, Hayat Boumeddiene, 26, escaped and is wanted in connection with the murder of a policewoman. (Photo by Aurelien Meunier/Getty Images)
PARIS, FRANCE - JANUARY 11: A general view of Place de la Republique during the mass unity rally on January 11, 2015 in Paris, France. An estimated one million people have converged in central Paris for the Unity March joining in solidarity with the 17 victims of this week's terrorist attacks in the country. President Francois Hollande of France led the march and was joined by world leaders in a sign of unity. The terrorist acts started on Wednesday with the attack on the French satirical magazine Charlie Hebdo, killing 12, and ended on Friday with sieges at a printing company in Dammartin en Goele and a Kosher supermarket in Paris with four hostages and three suspects being killed. A fourth suspect, Hayat Boumeddiene, 26, escaped and is wanted in connection with the murder of a policewoman. (Photo by Aurelien Meunier/Getty Images)
PARIS, FRANCE - JANUARY 11: A general view of Place de la Republique during the mass unity rally on January 11, 2015 in Paris, France. An estimated one million people have converged in central Paris for the Unity March joining in solidarity with the 17 victims of this week's terrorist attacks in the country. President Francois Hollande of France led the march and was joined by world leaders in a sign of unity. The terrorist acts started on Wednesday with the attack on the French satirical magazine Charlie Hebdo, killing 12, and ended on Friday with sieges at a printing company in Dammartin en Goele and a Kosher supermarket in Paris with four hostages and three suspects being killed. A fourth suspect, Hayat Boumeddiene, 26, escaped and is wanted in connection with the murder of a policewoman. (Photo by Aurelien Meunier/Getty Images)
PARIS, FRANCE - JANUARY 11: A general view of Place de la Republique during the mass unity rally on January 11, 2015 in Paris, France. An estimated one million people have converged in central Paris for the Unity March joining in solidarity with the 17 victims of this week's terrorist attacks in the country. President Francois Hollande of France led the march and was joined by world leaders in a sign of unity. The terrorist acts started on Wednesday with the attack on the French satirical magazine Charlie Hebdo, killing 12, and ended on Friday with sieges at a printing company in Dammartin en Goele and a Kosher supermarket in Paris with four hostages and three suspects being killed. A fourth suspect, Hayat Boumeddiene, 26, escaped and is wanted in connection with the murder of a policewoman. (Photo by Aurelien Meunier/Getty Images)
PARIS, FRANCE - JANUARY 11: A general view of Place de la Republique during the mass unity rally on January 11, 2015 in Paris, France. An estimated one million people have converged in central Paris for the Unity March joining in solidarity with the 17 victims of this week's terrorist attacks in the country. President Francois Hollande of France led the march and was joined by world leaders in a sign of unity. The terrorist acts started on Wednesday with the attack on the French satirical magazine Charlie Hebdo, killing 12, and ended on Friday with sieges at a printing company in Dammartin en Goele and a Kosher supermarket in Paris with four hostages and three suspects being killed. A fourth suspect, Hayat Boumeddiene, 26, escaped and is wanted in connection with the murder of a policewoman. (Photo by Aurelien Meunier/Getty Images)
PARIS, FRANCE - JANUARY 11: A general view of Place de la Republique during the mass unity rally on January 11, 2015 in Paris, France. An estimated one million people have converged in central Paris for the Unity March joining in solidarity with the 17 victims of this week's terrorist attacks in the country. President Francois Hollande of France led the march and was joined by world leaders in a sign of unity. The terrorist acts started on Wednesday with the attack on the French satirical magazine Charlie Hebdo, killing 12, and ended on Friday with sieges at a printing company in Dammartin en Goele and a Kosher supermarket in Paris with four hostages and three suspects being killed. A fourth suspect, Hayat Boumeddiene, 26, escaped and is wanted in connection with the murder of a policewoman. (Photo by Aurelien Meunier/Getty Images)
PARIS, FRANCE - JANUARY 11: People stand on a newsstand at 'Place de la Republique' during a unity rally in Paris led by French president Francois Hollande and other world leaders following the recent terrorist attacks, January 11, 2015 in Paris, France. An estimated one million people converged in central Paris for the Unity March in solidarity with the 17 victims of this week's terrorist attacks which began on Wednesday, January 8, 2014 with an attack on French satarical magazine Charlie Hebdo and continued through Friday with attacks at a printing company and a Kosher supermarket. Three suspects were killed in seiges while a fourth, Hayat Boumeddiene, 26, is wanted in connection with the murder of a policewoman. (Photo by Richard Bord/Getty Images)
PARIS, FRANCE - JANUARY 11: Demonstrators make their way from 'Place de la Republique' to 'Place de la Nation' in a unity rally in Paris led by French president Francois Hollande and other world leaders following the recent terrorist attacks, January 11, 2015 in Paris, France. An estimated one million people converged in central Paris for the Unity March in solidarity with the 17 victims of this week's terrorist attacks which began on Wednesday, January 8, 2014 with an attack on French satarical magazine Charlie Hebdo and continued through Friday with attacks at a printing company and a Kosher supermarket. Three suspects were killed in seiges while a fourth, Hayat Boumeddiene, 26, is wanted in connection with the murder of a policewoman. (Photo by Richard Bord/Getty Images)
PARIS, FRANCE - JANUARY 11: Demonstrators make their way from 'Place de la Republique' to 'Place de la Nation' in a unity rally in Paris led by French president Francois Hollande and other world leaders following the recent terrorist attacks, January 11, 2015 in Paris, France. An estimated one million people converged in central Paris for the Unity March in solidarity with the 17 victims of this week's terrorist attacks which began on Wednesday, January 8, 2014 with an attack on French satarical magazine Charlie Hebdo and continued through Friday with attacks at a printing company and a Kosher supermarket. Three suspects were killed in seiges while a fourth, Hayat Boumeddiene, 26, is wanted in connection with the murder of a policewoman. (Photo by Richard Bord/Getty Images)
PARIS, FRANCE - JANUARY 11: Demonstrators make their way from 'Place de la Republique' to 'Place de la Nation' in a unity rally in Paris led by French president Francois Hollande and other world leaders following the recent terrorist attacks, January 11, 2015 in Paris, France. An estimated one million people converged in central Paris for the Unity March in solidarity with the 17 victims of this week's terrorist attacks which began on Wednesday, January 8, 2014 with an attack on French satarical magazine Charlie Hebdo and continued through Friday with attacks at a printing company and a Kosher supermarket. Three suspects were killed in seiges while a fourth, Hayat Boumeddiene, 26, is wanted in connection with the murder of a policewoman. (Photo by Richard Bord/Getty Images)
PARIS, FRANCE - JANUARY 11: Demonstrators make their way from 'Place de la Republique' to 'Place de la Nation' in a unity rally in Paris led by French president Francois Hollande and other world leaders following the recent terrorist attacks, January 11, 2015 in Paris, France. An estimated one million people converged in central Paris for the Unity March in solidarity with the 17 victims of this week's terrorist attacks which began on Wednesday, January 8, 2014 with an attack on French satarical magazine Charlie Hebdo and continued through Friday with attacks at a printing company and a Kosher supermarket. Three suspects were killed in seiges while a fourth, Hayat Boumeddiene, 26, is wanted in connection with the murder of a policewoman. (Photo by Richard Bord/Getty Images)
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Many shed the aloof attitude Parisians are famous for, helping strangers with directions, cheering and crying together. Sad and angry but fiercely defending their freedom of expression, the marchers honored the dead and brandished pens or flags of other nations.

Giant rallies were held throughout France and major cities around the world, including London, Madrid and New York - all attacked by al-Qaida-linked extremists - as well as Cairo, Sydney, Stockholm, Tokyo and elsewhere.

In Paris, the Interior Ministry said "the size of this unprecedented demonstration makes it impossible to provide a specific count," noting that the crowds were too big to fit on the official march route and spread to other streets.

Later, the ministry said 3.7 million marched throughout France, including roughly between 1.2 million and 1.6 million in Paris - but added that a precise count is impossible given the enormity of the turnout.

"I hope that at the end of the day everyone is united. Everyone - Muslims, Jews, Christians, Buddhists," said marcher Zakaria Moumni. "We are humans first of all, and nobody deserves to be murdered like that. Nobody."

On Republic Square, deafening applause rang out as the world leaders walked past, amid tight security and an atmosphere of togetherness amid adversity. Families of the victims, holding each other for support, marched in the front along with the leaders and with journalists working for the Charlie Hebdo newspaper. Several wept openly.

"Je Suis Charlie" - "I Am Charlie," read legions of posters and banners. Many waved editorial cartoons, the French tricolor and other national flags.

As night fell on the unusually unified city, some lit candles.

"It's important to be here for freedom for tolerance and for all the victims. It's sad we had to get to this point for people to react against intolerance, racism and fascism," said Caroline Van Ruymbeke, 32.

The French president joined Netanyahu in a visit to a synagogue Sunday night as authorities sought to reassure the Jewish population - Europe's largest - that it is safe to stay in France. About 7,000 of France's half-million Jews emigrated to Israel last year amid concerns for their safety and the economy.

"The entire world is under attack" from radical Islam, Netanyahu said, citing attacks in cities from Madrid to Mumbai. He said these aren't isolated incidents but part of a "network of hatred" by radical groups.

At the synagogue, 17 candles were lit in tribute to the victims of the attacks. One was lit by a hostage at the kosher grocery store. The last was lit by two women whose sons were killed by Mohamed Merah, a radical Islamic gunman who attacked a Jewish school and paratroopers in southern France in 2012.

The U.S. was represented at the Paris rally by Ambassador Jane Hartley. At an international conference in India, U.S. Secretary of State John Kerry said the world stood with the people of France "not just in anger and in outrage, but in solidarity and commitment to the cause of confronting extremism and in the cause that extremists fear so much and that has always united our countries: freedom."

The three days of terror began Wednesday when brothers Said and Cherif Kouachi stormed the Charlie Hebdo newsroom, killing 12 people, including two police officers. Al-Qaida's branch in Yemen said it directed the attack to avenge the honor of the Prophet Muhammad, a frequent target of the weekly's barbs. Charlie Hebdo assailed Christianity, Judaism as well as officialdom of all stripes with its brand of sometimes crude satire.

On Thursday, police said Coulibaly killed a policewoman. The next day, he seized hostages at the kosher market while the Kouachi brothers were holed up at a printing plant near Charles de Gaulle airport. It ended at dusk Friday with raids that left all three gunmen dead. Four hostages at the market were also killed.

Five people held in connection with the attacks were freed late Saturday, leaving no one in custody, according to the Paris prosecutor's office. Coulibaly's widow, last seen near the Turkish-Syrian border, is still being sought.

France remains on high alert while investigators determine whether the attackers were part of a larger extremist network. More than 5,500 police and soldiers were deployed Sunday across France, guarding marches, synagogues, mosques, schools and other sites.

"The terrorists want two things: they want to scare us and they want to divide us," Foreign Minister Laurent Fabius told TV channel iTele. "We must do the opposite: We must stand up and we must stay united."

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