171121-N-PC620-0043 ATLANTIC OCEAN (Nov. 21, 2017) Sgt. Nicolas Martinez, assigned to the 26th Marine Expeditionary Unit (26th MEU), scans the horizon for surface contacts during a simulated strait transit aboard the amphibious assault ship USS Iwo Jima (LHD 7). The ship and its Amphibious Ready Group, with the embarked 26th Marine Expeditionary Unit (26 MEU), are conducting a combined composite training unit exercise that is the culmination of training for the Navy-Marine Corps team and will certify them for deployment. (U.S. Navy photo by Mass Communication Specialist Seaman Michael H. Lehman/Released)