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As formulated by the Missile Defense Advocacy Alliance (MDAA), the Marine Air Defense Integrated System (MADIS) is the Marine Corps’ new push for modernizing its Ground-Based Air Defense capabilities. It is part of the Corps plan to upgrade their two active Low Altitude Air Defense (LAAD) battalions, which currently rely on dismounted Stinger missiles and radar equipment transported in two AM General M1114 Humvees per section.