151219-N-ZZ999-001 N’DJAMENA, Chad (Dec. 19, 2015) Construction Electrician 2nd Class Thomas Oliveira, left, and Steelworker 1st Class Ronald Post, assigned to Naval Mobile Construction Battalion (NMCB) 27, measure the placement of joists in a tent deck project on Camp Tassone in N'Djamena, Chad, Dec. 19, 2015. U.S. 6th Fleet, headquartered in Naples, Italy, conducts the full spectrum of joint and naval operations, often in concert with allied, joint, and interagency partners, in order to advance U.S. national interests and security and stability in Europe and Africa. (U.S. Navy photo by Builder 2nd Class Phillip Grindstaff/Released)