A heavy equipment operator uses a 624 KR tractor, rubber tire, articulated, multipurpose, also known as a bucket loader, to knock over a tree at West Field, Tinian, Aug. 31 during Exercise Valiant Shield. Valiant Shield is a biennial exercise which focuses on training that enables real-world proficiency in sustaining joint forces. HE operators at Tinian are a mixture of operators from Combat Logistics Company 69, 9th Engineer Support Battalion and Marine Wing Support Squadron 171. The heavy equipment operator is with MWSS-171, Marine Aircraft Group 12, 1st Marine Aircraft Wing, III Marine Expeditionary Force. (U.S. Marine Corps photo by Cpl. D. A. Walters/Released) - A heavy equipment operator uses a 624 KR tractor, rubber tire, articulated, multipurpose, also known as a bucket loader, to knock over a tree at West Field, Tinian, Aug. 31 during Exercise Valiant Shield. Valiant Shield is a biennial exercise which focuses on training that enables real-world proficiency in sustaining joint forces. HE operators at Tinian are a mixture of operators from Combat Logistics Company 69, 9th Engineer Support Battalion and Marine Wing Support Squadron 171. The heavy equipment operator is with MWSS-171, Marine Aircraft Group 12, 1st Marine Aircraft Wing, III Marine Expeditionary Force. (U.S. Marine Corps photo by Cpl. D. A. Walters/Released)

Marines verify their checkpoints Jan. 24 at the Jungle Warfare Training Center, Camp Gonsalves, during a land navigation portion of a Jungle Communications Course. The course, which began Jan. 23, covers operation of communications equipment in jungle environments, as well as basic combat techniques. The Marines are with various units within III Marine Expeditionary Force. Photo by Lance Cpl. Pete Sanders - Marines verify their checkpoints Jan. 24 at the Jungle Warfare Training Center, Camp Gonsalves, during a land navigation portion of a Jungle Communications Course. The course, which began Jan. 23, covers operation of communications equipment in jungle environments, as well as basic combat techniques. The Marines are with various units within III Marine Expeditionary Force. Photo by Lance Cpl. Pete Sanders