U.S. Marines with Combat Logistics Company-16, 1st Maintenance Battalion, 1st Marine Logistics Group observe the Marine Air Defense Integrated System at Yuma Proving Ground, Arizona, December 13, 2023. The MADIS Mk1, pictured, and Mk2 form a complementary pair and will be the basic building block of the Low Altitude Air Defense (LAAD) Battalions’ ground-based air defense capability. (U.S. Marine Corps photo by Virginia Guffey)