150210-N-IM823-044 FALLON, Nev. (Feb. 10, 2015) Master-at-Arms 2nd Class Shane Miles communicates with Master-at-Arms Ryan Young as they clear a passageway during an active shooter exercise at Naval Air Station Fallon during the Navy-wide force protection exercise Solid Curtain-Citadel Shield 2015. (U.S. Navy photo by Mass Communication Specialist 1st Class Joseph R. Vincent/Released)