AZIRAT AL GHURAB ISLAND, Saudi Arabia (Oct. 20, 2021) Marines assigned to the 11th Marine Expeditionary Unit move a High Mobility Artillery Rocket System off of Landing Craft, Air Cushion 44, attached to Assault Craft Unit 5, during exercise Indigo Defender 21 at Jazirat al Ghurab Island, Saudi Arabia, Oct. 20, 2021. Indigo Defender 21 is a capstone bilateral maritime exercise between Royal Saudi Naval Forces and U.S. Naval Forces Central Command to enhance interoperability and strengthen our capacity to maintain regional maritime security and stability. (U.S. Marine Corps photo by Staff Sgt. Donald Holbert)