U.S. Marines with Marine Corps Systems Command, fire a Stinger Missile from a Marine Air Defense Integrated System (MADIS) at Yuma Proving Ground, Arizona, December 13, 2023. The MADIS Mk1 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)