U.S. Marine LCpl William Parker, Rifleman with Echo Company 2nd Battalion 4th Marines, Battalion Landing Team assigned to the 31st Marine Expeditionary Unit provides security while being attacked by role players during a Key Leader Engagement exercise for Talisman Saber 13, Sam Hill, Shoal Water Bay Training Area, Queensland, Australia, July 26th, 2013.Talisman Saber is a bilateral training exercise that the 31st MEU and the Australian Royal Military undergo every two years to improve interoperability and common relations between the two allied nations. (USMC photo by Cpl M.S. Oxton, 31st MEU Combat Camera)