U.S. Marines with 3rd Battalion, 3rd Marine Regiment

U.S. Marines with 3rd Battalion, 3rd Marine Regiment land in CH-53 Stallion helicopters and begin training operations at the Kahuku Training Area on the Island of Oahu, Hawaii. The CH-53 helicopters are supporting the Marine Corps Warfighting Lab's, Advanced Warfighting Experiment as part of the Rim of the Pacific (RIMPAC) 2014 Exercise. 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. William L. Holdaway)