Canada's Governor General David Johnston speaks during the welcoming ceremony for the last of Canada's troops from Afghanistan, as they returned to Ottawa International Airport on March 18, 2014 in Ottawa, Ontario. Eighty-four armed forces members were welcomed home marking the end of Canada's participation in the Afghanistan war, a mission that spanned 12 years. AFP PHOTO/ Cole Burston (Photo credit should read Cole Burston/AFP/Getty Images)
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