European Council President Donald Tusk has a stern warning for Trump

The European Union is firing back at President Donald Trump’s criticisms.

“Dear America, appreciate your allies,” European Council President Donald Tusk said. “After all, you don’t have that many.” 

He also shared a similar sentiment in Trump’s favorite forum, Twitter:

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Thousands protest Trump in Belgium ahead of NATO summit
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Thousands protest Trump in Belgium ahead of NATO summit
Protesters take part in a march against the NATO leaders summit, in Brussels, Belgium July 7, 2018. REUTERS/Eric Vidal
Protesters take part in a march against the NATO leaders summit, in Brussels, Belgium July 7, 2018. REUTERS/Eric Vidal
A participant holds the portrait of U.S. President Donald Trump as protesters take part in a march against the NATO leaders summit, in Brussels, Belgium July 7, 2018. REUTERS/Eric Vidal
A mock figurine depicting U.S. President Donald Trump is seen as protesters take part in a march against the NATO leaders summit, in Brussels, Belgium July 7, 2018. REUTERS/Eric Vidal TEMPLATE OUT
Protesters take part in a march against the NATO leaders summit, in Brussels, Belgium July 7, 2018. The banner reads: "No to NATO. No to War". REUTERS/Eric Vidal
Protesters take part in a march against the NATO leaders summit, in Brussels, Belgium July 7, 2018. REUTERS/Eric Vidal
Protesters take part in a march against the NATO leaders summit, in Brussels, Belgium July 7, 2018. REUTERS/Eric Vidal
Protesters take part in a march against the NATO leaders summit, in Brussels, Belgium July 7, 2018. REUTERS/Eric Vidal
Protesters take part in a march against the NATO leaders summit, in Brussels, Belgium July 7, 2018. REUTERS/Eric Vidal
Protesters take part in a march against the NATO leaders summit, in Brussels, Belgium July 7, 2018. REUTERS/Eric Vidal
Protesters take part in a march against the NATO leaders summit, in Brussels, Belgium July 7, 2018. REUTERS/Eric Vidal TEMPLATE OUT
Two mock figurines depicting U.S. President Donald Trump and Belgium's Prime Minister Charles Michel are seen as protesters take part in a march against the NATO leaders summit, in Brussels, Belgium July 7, 2018. The writing on the placard reads, 'NATO, we don't want it'. REUTERS/Eric Vidal
Protesters take part in a march against the NATO leaders summit, in Brussels, Belgium July 7, 2018. REUTERS/Eric Vidal
Protesters take part in a march against the NATO leaders summit, in Brussels, Belgium July 7, 2018. REUTERS/Eric Vidal
A demonstrator holds a placard as protesters prepare to take part in a march against the NATO leaders summit, in Brussels, Belgium July 7, 2018. REUTERS/Eric Vidal
Protestors carry placards as they take part in a rally in Brussels on July 7, 2018, against the forthcoming NATO summit and scheduled visit of US President Donald Trump on July 11 and 12. (Photo by NICOLAS MAETERLINCK / BELGA / AFP) / Belgium OUT (Photo credit should read NICOLAS MAETERLINCK/AFP/Getty Images)
July 7th, Brussels. President Donald Trump will travel to Brussels to attend a NATO meeting scheduled for July 11-12, where it's going to be on the table more military expenditure by all NATO countries, including Belgium. This Saturday thousands of people gathering in Brussels to protest organized by the Belgium platform 'Trump not welcome here'. According to this platform, 'we don't want to take part in this military bid at the expense of social protection, tackling climate change, fighting poverty, a humane refugee policy and a diverse and inclusive society without racism, sexism, homo, and transphobia'. (Photo by Romy Arroyo Fernandez/NurPhoto via Getty Images)
July 7th, Brussels. President Donald Trump will travel to Brussels to attend a NATO meeting scheduled for July 11-12, where it's going to be on the table more military expenditure by all NATO countries, including Belgium. This Saturday thousands of people gathering in Brussels to protest organized by the Belgium platform 'Trump not welcome here'. According to this platform, 'we don't want to take part in this military bid at the expense of social protection, tackling climate change, fighting poverty, a humane refugee policy and a diverse and inclusive society without racism, sexism, homo, and transphobia'. (Photo by Romy Arroyo Fernandez/NurPhoto via Getty Images)
July 7th, Brussels. President Donald Trump will travel to Brussels to attend a NATO meeting scheduled for July 11-12, where it's going to be on the table more military expenditure by all NATO countries, including Belgium. This Saturday thousands of people gathering in Brussels to protest organized by the Belgium platform 'Trump not welcome here'. According to this platform, 'we don't want to take part in this military bid at the expense of social protection, tackling climate change, fighting poverty, a humane refugee policy and a diverse and inclusive society without racism, sexism, homo, and transphobia'. (Photo by Romy Arroyo Fernandez/NurPhoto via Getty Images)
July 7th, Brussels. President Donald Trump will travel to Brussels to attend a NATO meeting scheduled for July 11-12, where it's going to be on the table more military expenditure by all NATO countries, including Belgium. This Saturday thousands of people gathering in Brussels to protest organized by the Belgium platform 'Trump not welcome here'. According to this platform, 'we don't want to take part in this military bid at the expense of social protection, tackling climate change, fighting poverty, a humane refugee policy and a diverse and inclusive society without racism, sexism, homo, and transphobia'. (Photo by Romy Arroyo Fernandez/NurPhoto via Getty Images)
July 7th, Brussels. President Donald Trump will travel to Brussels to attend a NATO meeting scheduled for July 11-12, where it's going to be on the table more military expenditure by all NATO countries, including Belgium. This Saturday thousands of people gathering in Brussels to protest organized by the Belgium platform 'Trump not welcome here'. According to this platform, 'we don't want to take part in this military bid at the expense of social protection, tackling climate change, fighting poverty, a humane refugee policy and a diverse and inclusive society without racism, sexism, homo, and transphobia'. (Photo by Romy Arroyo Fernandez/NurPhoto via Getty Images)
July 7th, Brussels. President Donald Trump will travel to Brussels to attend a NATO meeting scheduled for July 11-12, where it's going to be on the table more military expenditure by all NATO countries, including Belgium. This Saturday thousands of people gathering in Brussels to protest organized by the Belgium platform 'Trump not welcome here'. According to this platform, 'we don't want to take part in this military bid at the expense of social protection, tackling climate change, fighting poverty, a humane refugee policy and a diverse and inclusive society without racism, sexism, homo, and transphobia'. (Photo by Romy Arroyo Fernandez/NurPhoto via Getty Images)
July 7th, Brussels. President Donald Trump will travel to Brussels to attend a NATO meeting scheduled for July 11-12, where it's going to be on the table more military expenditure by all NATO countries, including Belgium. This Saturday thousands of people gathering in Brussels to protest organized by the Belgium platform 'Trump not welcome here'. According to this platform, 'we don't want to take part in this military bid at the expense of social protection, tackling climate change, fighting poverty, a humane refugee policy and a diverse and inclusive society without racism, sexism, homo, and transphobia'. (Photo by Romy Arroyo Fernandez/NurPhoto via Getty Images)
July 7th, Brussels. President Donald Trump will travel to Brussels to attend a NATO meeting scheduled for July 11-12, where it's going to be on the table more military expenditure by all NATO countries, including Belgium. This Saturday thousands of people gathering in Brussels to protest organized by the Belgium platform 'Trump not welcome here'. According to this platform, 'we don't want to take part in this military bid at the expense of social protection, tackling climate change, fighting poverty, a humane refugee policy and a diverse and inclusive society without racism, sexism, homo, and transphobia'. (Photo by Romy Arroyo Fernandez/NurPhoto via Getty Images)
July 7th, Brussels. President Donald Trump will travel to Brussels to attend a NATO meeting scheduled for July 11-12, where it's going to be on the table more military expenditure by all NATO countries, including Belgium. This Saturday thousands of people gathering in Brussels to protest organized by the Belgium platform 'Trump not welcome here'. According to this platform, 'we don't want to take part in this military bid at the expense of social protection, tackling climate change, fighting poverty, a humane refugee policy and a diverse and inclusive society without racism, sexism, homo, and transphobia'. (Photo by Romy Arroyo Fernandez/NurPhoto via Getty Images)
July 7th, Brussels. President Donald Trump will travel to Brussels to attend a NATO meeting scheduled for July 11-12, where it's going to be on the table more military expenditure by all NATO countries, including Belgium. This Saturday thousands of people gathering in Brussels to protest organized by the Belgium platform 'Trump not welcome here'. According to this platform, 'we don't want to take part in this military bid at the expense of social protection, tackling climate change, fighting poverty, a humane refugee policy and a diverse and inclusive society without racism, sexism, homo, and transphobia'. (Photo by Romy Arroyo Fernandez/NurPhoto via Getty Images)
July 7th, Brussels. President Donald Trump will travel to Brussels to attend a NATO meeting scheduled for July 11-12, where it's going to be on the table more military expenditure by all NATO countries, including Belgium. This Saturday thousands of people gathering in Brussels to protest organized by the Belgium platform 'Trump not welcome here'. According to this platform, 'we don't want to take part in this military bid at the expense of social protection, tackling climate change, fighting poverty, a humane refugee policy and a diverse and inclusive society without racism, sexism, homo, and transphobia'. (Photo by Romy Arroyo Fernandez/NurPhoto via Getty Images)
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Trump has slammed Europe on trade and criticized NATO partners for not paying enough for defense, targeting both Tuesday in a tweetstorm: 

Trump arrived in Brussels on Tuesday for the NATO summit and a trip to the United Kingdom later in the week. He will meet with Russian President Vladimir Putin in Helsinki next week. 

  • This article originally appeared on HuffPost.
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