U.S. Marine Corps Cpl. Jose L. Polanco steadies a high-mobility, multi-purpose wheeled vehicle’s engine on a wench during Exercise Koolendong 13 on Bradshaw Field Training Area, Australia, Sept. 1, 2013. Polanco, a heavy equipment mechanic, is assigned to Combat Logistics Battalion 31, 31st Marine Expeditionary Unit. U.S. Marine Corps Cpl. Jose L. Polanco steadies a high-mobility, multi-purpose wheeled vehicle’s engine on a wench during Exercise Koolendong 13 on Bradshaw Field Training Area, Australia, Sept. 1, 2013. Polanco, a heavy equipment mechanic, is assigned to Combat Logistics Battalion 31, 31st Marine Expeditionary Unit. SHARE: Download: Full Size (2.32 MB) Tags: Photo Essays Credit: VIRIN: 799136-Y-RTU37-890.jpg Photo Gallery