Ambassador W. Stuart Symington congratulates Army Spc. Markus N. Manabat after taking the Oath of Allegiance during a Military Naturalization Ceremony at the U.S. Embassy March 13. Symington is the U.S. Ambassador to Djibouti and Manabat, a Mangialo, Guam, native, is a machine gunner for 1st Battalion, 294th Infantry (Light), Delta Company, 3rd Platoon, 3rd Squad.