180427-N-HV356-128 POWIDZ, Poland (April 27, 2018) Lt. j. g. Arthur Mapugay, left, Chief Builder Zachary Vaughan and Builder 3rd Class Petro Yaremchuk, all assigned to Naval Mobile Construction Battalion (NMCB) 11, hold a safety brief prior to participating in a quality control training evolution at Powidz Air Base, Poland. NMCB-11 is forward-deployed to Poland to execute construction, humanitarian and foreign assistance, special operations combat service support and theater security cooperation in support of European Deterrence Initiative and the U.S. 6th Fleet. (U.S. Navy photo by Construction Electrician Constructionman Monique Erdman/Released)