170202-N-OA516-0053 MAYPORT, Fla. (Feb. 2, 2017) Sailors assigned to the amphibious assault ship USS Iwo Jima (LHD 7) respond to a simulated mass casualty during a general quarters drill. Iwo Jima is moored at her homeport in Mayport, Fla., conducting a scheduled maintenance availability. (U.S. Navy photo by Mass Communication Specialist Seaman Kevin Leitner/Released)