170111-N-CS953-013 ARABIAN SEA (Jan. 11, 2017) Boatswain's Mate 1st Class Jason Finch, assigned to the Arleigh Burke-class guided-missile destroyer USS Mahan (DDG 72), demonstrates room entry techniques to Sailors during security reaction force basic training. Mahan is deployed in the U.S. 5th Fleet area of operations in support of maritime security and theater security operation efforts. (U.S. Navy photo by Mass Communication Specialist 1st Class Tim Comerford/Released)