U.S. Marine Corps Gen. James F. Amos, the outgoing commandant of the Marine Corps, salutes the colors during the passage of command ceremony at Marine Barracks Washington in Washington, D.C., Oct. 17, 2014.
Amos relinquished command of the Marine Corps to Gen. Joseph F. Dunford Jr. and retired after 44 years of military service. (DoD photo by Petty Officer 2nd Class Patrick Kelley, U.S. Coast Guard/Released). Original public domain image from Flickr