Spc. Nikolas Wright and Army Pfc. Joseph Johnson, crew chiefs with Bravo Company, 3rd Battalion, 25th Aviation Regiment, hang off the back of a CH-47F Chinook helicopter while flying over the waters off of Marine Corps Training Area Bellows, March 16, 2015. The soldiers just assisted in conducting a helo cast in support of Operational Detachment Alpha 1215, 1st Special Forces Group, Joint Base Lewis-McChord who were completing a simulated combat dive mission. (U.S. Marine Corps photo by Lance Cpl. Brittney Vella/Released)