(FILES) In this photograph taken on September 7, 2012, Britain's Prince Harry examines the 30mm cannon of an Apache helicopter with a member of his 622 Squadron, 3 Regiment Army Air Corps, part of 16 Air Assault Brigade, at Camp Bastion in Helmand Province, Afghanistan, where he will be operating from during his tour of duty as a co-pilot gunner. Britain will withdraw 3,800 of its 9,000 troops from Afghanistan by the end of 2013, Prime Minister David Cameron said on December 19, 2012. AFP PHOTO/POOL/JOHN STILLWELL/FILES
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