Grenade Practice Marine Corps Lance Cpl. Jake Colburn throws an M228 practice grenade during a basic skills training exercise at Camp Hansen, Okinawa, Japan, Aug. 16, 2023. The training taught Marines the fragmentation grenade’s capabilities, limitations, and concept of operation. SHARE: Download: Full Size (6.06 MB) Tags: Marine Corps, Indo-Pacific Credit: Marine Corps Cpl. Sydni Jessee VIRIN: 230816-M-RF870-1260.JPG Photo Gallery