The Legged Squad Support System (LS3) walks around the Kahuku Training Area July 10, 2014 during the Rim of the Pacific 2014 exercise. The LS3 is experimental technology being tested by the Marine Corps Warfighting Lab during RIMPAC 2014. It is programmed to follow an operator through terrain, carrying heavy loads like water and food to Marines training. There are multiple technologies being tested during RIMPAC, the largest maritime exercise in the Pacific region. This year's RIMPAC features 22 countries and around 25,000 people. (U.S. Marine Corps photo by Sgt. Sarah Dietz