World-Class Athletic Centre Opens at Ryerson

U.S. President Barack Obama (6th L) and U.S. Vice President Joe Biden (4th L) greet troops during a ceremony to mark the return of the U.S. Forces-Iraq Colors and the end of the Iraq war on Dec. 20, at Joint Base Andrews, Md. The last U.S. troops left Iraq on Dec. 18, ending the war after nearly nine years. (Kristoffer Tripplaar-Pool/Getty Images)