Arbor Day
Lt. Col. Madison Morris, 460th Civil Engineer Squadron commander, gives the opening remarks during the Arbor Day celebration April 24, 2013, at Buckley Air Force Base, Colo. Countries around the world plant trees to celebrate Arbor Day, which began in Nebraska City, Neb., in 1872. (U.S. Air Force photo by Senior Airman Marcy Glass/Released)