Kate Middleton and Meghan Markle steal the show in McQueen and Dior for latest royal appearance

Ah, the life of a royal. One day you’re shaking hands with the Archbishop of Canterbury at Prince Louis’s christening, the next you’re staring up at the sky to watch a military flyover at Buckingham Palace.

A day after gathering for the youngest royal heir’s special church service, Prince William, Kate Middleton, Prince Harry, and Meghan Markle helped celebrate the 100th anniversary of the Royal Air Force.

The royal brothers wore their military uniforms as they arrived at Westminster Abbey Tuesday morning for a service marking the centenary. Prince William formerly served as an RAF search-and-rescue pilot, while Prince Harry received helicopter training from the RAF during his time in the Army Air Corps.

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Duchess Kate and Duchess Meghan at Royal Air Force Anniversary
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Duchess Kate and Duchess Meghan at Royal Air Force Anniversary
(left to right) The Duchess of Sussex, Duke of Sussex, Duke of Cambridge and Duchess of Cambridge on the balcony at Buckingham, Palace where they watched a Royal Air Force flypast over central London to mark the centenary of the Royal Air Force. (Photo by Victoria Jones/PA Images via Getty Images)
LONDON, ENGLAND - JULY 10: LONDON, ENGLAND - JULY 10: Queen Elizabeth II and Meghan, Duchess of Sussex watch the RAF 100th anniversary flypast from the balcony of Buckingham Palace on July 10, 2018 in London, England. (Photo by Paul Grover - WPA Pool/Getty Images)
LONDON, ENGLAND - JULY 10: Queen Elizabeth II, Meghan, Duchess of Sussex, Prince Harry, Duke of Sussex, Prince William Duke of Cambridge and Catherine, Duchess of Cambridge watch the RAF 100th anniversary flypast from the balcony of Buckingham Palace on July 10, 2018 in London, England. (Photo by Paul Grover - WPA Pool/Getty Images)
LONDON, ENGLAND - JULY 10: Catherine, Duchess of Cambridge attends a service to commemorate The Royal Air Force's 100th Birthday at Westminster Abbey on July 10, 2018 in London, England. (Photo by Simon Dawson - WPA Pool/Getty Images)
LONDON, ENGLAND - JULY 10: Meghan, Duchess of Sussex attends a service to commemorate The Royal Air Force's 100th Birthday at Westminster Abbey on July 10, 2018 in London, England. (Photo by Simon Dawson - WPA Pool/Getty Images)
LONDON, ENGLAND - JULY 10: Prince Harry, Duke of Sussex and his wife Meghan, Duchess of Sussex atend a service to commemorate The Royal Air Force's 100th Birthday at Westminster Abbey on July 10, 2018 in London, England. (Photo by Simon Dawson - WPA Pool/Getty Images)
Britain's Catherine, Duchess of Cambridge (L), Britain's Prince Harry (C) and his wife Meghan, the Duke and Duchess of Sussex arrive at Westminster Abbey for a service to mark the centenary of the Royal Air Force (RAF) in central London on July 10, 2018. (Photo by SIMON DAWSON / POOL / AFP) (Photo credit should read SIMON DAWSON/AFP/Getty Images)
The Duchess of Sussex leaves a service at Westminster Abbey, London, to mark the centenary of the Royal Air Force. (Photo by Steve Parsons/PA Images via Getty Images)
The Duchess of Cambridge leaves a service at Westminster Abbey, London, to mark the centenary of the Royal Air Force. (Photo by Steve Parsons/PA Images via Getty Images)
Britain's Catherine, Duchess of Cambridge (L) and Britain's Prince William, Duke of Cambridge arrive for a service to mark the centenary of the Royal Air Force (RAF) at Westminster Abbey in central London on July 10, 2018. (Photo by Chris J Ratcliffe / AFP) (Photo credit should read CHRIS J RATCLIFFE/AFP/Getty Images)
The Duke and Duchess of Cambridge and the Duke and Duchess of Sussex arrive at a service at Westminster Abbey, London, to mark the centenary of the Royal Air Force. (Photo by Steve Parsons/PA Images via Getty Images)
The Duke of Cambridge and the Duke and Duchess of Sussex arrive at a service at Westminster Abbey, London, to mark the centenary of the Royal Air Force. (Photo by Steve Parsons/PA Images via Getty Images)
The Duchess of Cambridge attends a service at Westminster Abbey, London, to mark the centenary of the Royal Air Force. (Photo by Steve Parsons/PA Images via Getty Images)
The Duke and Duchess of Sussex arrive at a service at Westminster Abbey, London, to mark the centenary of the Royal Air Force. (Photo by Steve Parsons/PA Images via Getty Images)
Britain's Prince Harry, Duke of Sussex (R) and Meghan, Duchess of Sussex arrive for a service to mark the centenary of the Royal Air Force (RAF) at Westminster Abbey in central London on July 10, 2018. (Photo by Chris J Ratcliffe / AFP) (Photo credit should read CHRIS J RATCLIFFE/AFP/Getty Images)
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And what of their wives? For the second day in a row, Kate pulled an Alexander McQueen number from her closet. Her icy mint coat is the same style she wore to the royal wedding on May 19, albeit in a different color. The duchess accessorized with nude heels, a silvery fascinator with a bow and floral accents, and the prestigious Air Cadets Dacre brooch, which is the highest award a female cadet can receive. 

Meghan, meanwhile, went for a darker look in a retro-style, bespoke Dior dress featuring her go-to bateau neckline. The Duchess of Sussex, who will travel to Dublin Tuesday evening with Prince Harry, paired the dark navy dress with a matching fascinator by Stephen Jones, gold-and-diamond Cartier earrings, and, like her sister-in-law, nude pumps.

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Prince Louis' christening
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Prince Louis' christening
LONDON, ENGLAND - JULY 09: Princess Charlotte and Prince George hold the hands of their father, Prince William, Duke of Cambridge, as they arrive at the Chapel Royal, St James's Palace, London for the christening of their brother, Prince Louis, who is being carried by their mother, Catherine, Duchess of Cambridge on July 09, 2018 in London, England. (Photo by Dominic Lipinski - WPA Pool/Getty Images)
The Duke and Duchess of Cambridge with their children Prince George, Princess Charlotte and Prince Louis after Prince Louis's christening at the Chapel Royal, St James's Palace, London.
The Duke and Duchess of Cambridge with their children Prince George, Princess Charlotte and Prince Louis after Prince Louis's christening at the Chapel Royal, St James's Palace, London.
The Duke of Cambridge with Prince George and Princess Charlotte after Prince Louis's christening at the Chapel Royal, St James's Palace, London.
Britain's Catherine, the Duchess of Cambridge, carries Prince Louis as they arrive for his christening service at the Chapel Royal, St James's Palace, London, Britain, July 9, 2018. Dominic Lipinski/Pool via REUTERS
Britain's Catherine, the Duchess of Cambridge, carries Prince Louis as they arrive for his christening service at the Chapel Royal, St James's Palace, London, Britain, July 9, 2018. Dominic Lipinski/Pool via REUTERS
Britain's Catherine, the Duchess of Cambridge, carries Prince Louis as they arrive for his christening service at the Chapel Royal, St James's Palace, London, Britain, July 9, 2018. Dominic Lipinski/Pool via REUTERS
LONDON, ENGLAND - JULY 09: Catherine, Duchess of Cambridge carries Prince Louis as they arrive for his christening service at St James's Palace on July 09, 2018 in London, England. (Photo by Dominic Lipinski - WPA Pool/Getty Images)
The Duke and Duchess of Sussex depart after attending the christening of Prince Louis at the Chapel Royal, St James's Palace, London.
The Duke and Duchess of Cambridge with their children Prince George, Princess Charlotte and Prince Louis after Prince Louis's christening at the Chapel Royal, St James's Palace, London.
Pippa Middleton and her husband James Matthews arriving for the christening of Prince Louis, the youngest son of the Duke and Duchess of Cambridge at the Chapel Royal, St James's Palace, London.
The Prince of Wales and the Duchess of Cornwall arriving for the christening of Prince Louis, the youngest son of the Duke and Duchess of Cambridge at the Chapel Royal, St James's Palace, London.
Britain's Prince Harry and Meghan, the Duchess of Sussex, leave the chapel after the christening of Prince Louis at the Chapel Royal, St James's Palace, London, Britain, July 9, 2018. Dominic Lipinski/Pool via REUTERS
James Matthews arrives for the christening of Prince Louis, the youngest son of the Duke and Duchess of Cambridge at the Chapel Royal, St James's Palace, London, Britain, July 9, 2018. Dominic Lipinski/Pool via REUTERS
Pippa Middleton and her husband James Matthews, arrive for the christening of Prince Louis, the youngest son of the Duke and Duchess of Cambridge at the Chapel Royal, St James's Palace, London, Britain, July 9, 2018. Dominic Lipinski/Pool via REUTERS
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