180420-N-ET513-0051 U.S. 5TH FLEET AREA OF OPERATIONS (April 20, 2018) Gunner's Mate 3rd Class Nicholas Mason reassembles an M16 service rifle aboard the guided-missile destroyer USS Laboon (DDG 58). Laboon is deployed to the U.S. 5th Fleet area of operations in support of maritime security operations to reassure allies and partners and preserve the freedom of navigation and the free flow of commerce in the region. (U.S. Navy photo by Mass Communication Specialist 3rd Class Kallysta Castillo/Released)