170126-N-DH124-038 PORT HUENEME, Calif. (Jan. 26, 2017) Equipment Operator 3rd Class Chainephong Singsay, assigned to Naval Mobile Construction Battalion 4, pulls chains used to tie down a Humvee during a Loading Exercise (LOADEX) aboard the amphibious transport dock ship USS San Diego (LPD 22). The exercise is designed to train Sailors with rapid response capabilities to support recovery efforts and assist local authorities following man-made and natural disasters. (U.S. Navy photo by Mass Communication Specialist 1st Class Rosalie Chang/Released)