161031-N-MH057-231 PACIFIC OCEAN (Oct. 31, 2016) Petty Officer 1st Class William Elliott (top) and Seaman Terry Kelly fire an M240B medium machine gun as part of a training exercise aboard USS Nimitz (CVN 68). Nimitz is underway conducting routine operatations in preperation for an upcoming 2017 deployment. U.S. Navy photo by Seaman Cody M. Deccio/Released)