Amphibious Assault U.S. Marine Corps AAV7A1 tracked vehicles pop smoke during an amphibious assault mission during exercise Ssang Yong 16 near Pohang, South Korea, March 12, 2016. The vehicles are assigned to the 13th Marine Expeditionary Unit. Marine Corps photo by Lance Cpl. Sean M. Evans SHARE: Download: Full Size (0.34 MB) Tags: south korean marines, marines, 3rd marine regiment, pohang, south korea, ssang yong 16, 1st battalion Credit: Lance Cpl. Sean Evans VIRIN: 160312-M-DV652-039A.JPG Photo Gallery