The British Naval Attache to the United States, Commodore Richard Allen, left, speaks with a U.S. Marine Corps colonel aboard a Marine Corps MV-22 Osprey tiltrotor aircraft from Marine Helicopter Squadron 1 (HMX-1) en route from the Pentagon in Arlington, Va., July 29, 2014. Zambellas is taking part in the Commandant of the Marine Corps' Counterpart Program, which invites foreign military leaders to visit the United States and interact with U.S. military leaders. (U.S. Marine Corps photo by Cpl. Michael C. Guinto/Released)