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LONDON, ENGLAND - AUGUST 2:  Prince Philip, Duke of Edinburgh, in his role as Captain General, Royal Marines, makes his final individual public engagement as he attends a parade to mark the finale of the 1664 Global Challenge, on the Buckingham Palace Forecourt on August 2, 2017 in London, England. (Photo by Hannah McKay - WPA Pool/Getty Images)
LONDON, ENGLAND - AUGUST 2:  Prince Philip, Duke of Edinburgh, in his role as Captain General, Royal Marines, makes his final individual public engagement as he attends a parade to mark the finale of the 1664 Global Challenge, on the Buckingham Palace Forecourt on August 2, 2017 in London, England. (Photo by Hannah McKay - WPA Pool/Getty Images)

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Prince Philip retires after 65 years

After 22,219 solo engagements since 1952, 96-year-old Prince Philip attended his final public event, a Royal Marines parade at Buckingham Palace on Wednesday. CNN's Nick Glass reports.

Prince Philip retires after 65 years

After 22,219 solo engagements since 1952, 96-year-old Prince Philip attended his final public event, a Royal Marines parade at Buckingham Palace on Wednesday. CNN's Nick Glass reports.