Security Post A Marine works security during a live-fire exercise in Okinawa, Japan, March 28, 2020. The exercise simulated the seizure of an objective by aerial assault from the amphibious assault ship USS America. SHARE: Download: Full Size (0.89 MB) Tags: Marine Corps, Indo-Pacific Credit: Marine Corps Lance Cpl. Joshua Brittenham VIRIN: 200327-M-WW783-1004C.JPG Photo Gallery