STRAIT OF HORMUZ (Aug. 12, 2019) An AH-1Z Viper helicopter attached to Marine Medium Tiltrotor Squadron (VMM) 163 (Reinforced), 11th Marine Expeditionary Unit (MEU) takes off during a strait transit aboard the amphibious assault ship USS Boxer (LHD 4). The Boxer Amphibious Ready Group and the 11th MEU are deployed to the U.S. 5th Fleet area of operations in support of naval operations to ensure maritime stability and security in the Central Region, connecting the Mediterranean and the Pacific through the Western Indian Ocean and three strategic choke points. (U.S. Marine Corps photo by Lance Cpl. Dalton S. Swanbeck/Released)STRAIT OF HORMUZ (Aug. 12, 2019)
You might note that "manned mobile gun platform" on the elevator behind the helicopters.