31 Photos of Prince Harry for His 31st Birthday

The Prince and Princess of Wales in 1984 following the birth of their second son, Prince Harry.

Prince Harry learning to crawl at home in Kensington Palace, London on Oct. 4, 1985.

Diana, Princess of Wales with her sons, Prince William and Prince Harry, at the piano in Kensington Palace, London on Oct. 4, 1985.

The Princess of Wales holds son Prince Harry while the royal family poses for photographers at the Royal Palace in Majorca, Spain on Aug. 9, 1987.

Prince Harry, 3, peers through a pair of binoculars made with two cardboard tubes on his way out from his first day at a kindergarten in London on Sept. 16, 1987.

Prince Harry sticks his tongue out at the Trooping The Colour ceremony at Buckingham Palace on June 11, 1988.

The Prince of Wales and Princes William and Harry at Balmoral Castle in Scotland on Aug. 16, 1997.

The Earl Spencer, Prince William, Prince Harry and the Prince of Wales, wait as the hearse carrying the coffin of Diana, Princess of Wales, prepares to leave Westminster Abbey following her funeral on Sept. 6, 1997.

Prince Harry writes at his desk in his room at Eton College boarding school on June 7, 2003 in Berkshire, England.

Prince Harry takes part in The Field Game on College Field at Eton in Berkshire, England on June 8, 2003.

Prince Harry chases after the ball during the Young England Team against the Young Australian Team polo match in Richmond, Australia on Nov. 23, 2003.

Prince Harry teaches rugby to a group of 10 and 11-year-old pupils from Shelfield Primary School in Walsall in central England on Sept. 28, 2004.

Queen Elizaberth II smiles at Prince Harry as they watch Prince Charles and Camilla, Duchess of Cornwall leave St. George's Chapel on April 8, 2005.

Queen Elizabeth smiles with Prince Harry during the Sovereign's Parade at the Royal Military Academy in Sandhurst, southern England on April 12, 2006.

Prince William and Prince Harry, right, parade in suits and bowler hats with the Combined Cavalry Old Comrades' Association, in Hyde Park, London on May 13, 2007.

Britain's Prince William, singer Kanye West, Prince Harry and singer P. Diddy attend a reception after the concert in memory of Diana, Princess of Wales, at Wembley Stadium in London on July 1, 2007.

Britain's Prince Harry sits in his Spartan armoured vehicle in the desert in Helmand province in Southern Afghanistan February 19, 2008.

Prince William and Prince Harry stand with their motorcycles before the start of the Enduro Africa 08 charity motorcycle ride in Port Edward, about 93 miles) southwest of Durban on Oct. 17, 2008.

Britain's Prince Harry sings the national anthem before the Six Nations rugby match between England and Italy at Twickenham in London on Feb. 7, 2009.

Prince Harry and Chelsy Davy attend the friendly international rugby union match between England and Australia at Twickenham in London on Nov. 7, 2009.

Britain's Prince Harry holds Veyron, an eight-week-old puppy, during a visit to the charity Canine Partners Training Centre, in Midhurst, England on July 13, 2010.

Prince Harry tries wearing an immersion suit on the island of Spitsbergen, between the Norwegian mainland and the North Pole, on March 30, 2011.

Britain's Prince Harry visits the Xunantunich Mayan temple near Benque Viejo March 3, 2012.

Prince Harry poses with Usain Bolt at the Usain Bolt Track at the University of the West Indies on March 6, 2012 in Kingston, Jamaica.

Prince Harry visits Up-Park Camp on March 7, 2012 in Kingston, Jamaica. Prince Harry was in Jamaica as part of a Diamond Jubilee Tour, representing Queen Elizabeth.

Prince Harry speaks with First Lady Michelle Obama during the first day of his visit to the United States on May 9, 2013 in Washington, D.C.

Britain's Prince Harry plays sitting volleyball with members of the British Warrior Games team in a gymnasium, before the opening of the Warrior Games at the U.S. Olympic Training Center in Colorado Springs, Colorado on May 11, 2013.

Prince Harry salutes the ceremonial guards at Garden Island Naval Base for the International Fleet Review in Sydney on Oct. 5, 2013.

The Duke and Duchess of Cambridge and Prince Harry view the Tower of London's "Blood Swept Lands and Seas of Red" Poppy Installation to commemorate the 100th Anniversary of the outbreak of the First World War at the Tower of London on Aug. 5, 2014.

Prince Harry participates in a celebrity wheelchair rugby match on day 2 of the Invictus Games in London on Sept. 12, 2014.

Prince Harry attends the unveiling of the Bastion Memorial at The National Memorial Arboretum on June 11, 2015 in Stafford, England.