U.S. Marine Corps Staff Sgt. Bryan Robbins calls for mortar support during a live-fire exercise on Shoalwater Bay Training Area, Queensland, Australia, July 13, 2012. Robbins is a platoon sergeant assigned to 3rd Platoon, Company G., Battalion Landing Team 2nd Battalion, 1st Marines, 31st Marine Expeditionary Unit. Exercise Hamel 2012 is a multi-national training evolution between the U.S. Marine Corps, Australian Army and New Zealand Army, aimed at certifying the Australian 1st Brigade.