Official websites use .mil
Secure .mil websites use HTTPS
U.S. Marine Lance Cpl. Gabriel Marrero, a fire directional control specialist with Headquarters Battery, 12th Marine Regiment, 3rd Marine Division, stands security during Thunder Field Training Exercise on Camp Hansen, Okinawa, Japan, Sept. 18, 2019. The purpose of the exercise is to rehearse setting up an expeditionary combat operations center and refine procedures for doing so. Marrero is a native of Atlantic City, N.J.