The 54th Artillery Group is a military unit within the United States Army. Established during World War II, it serves under the U.S. Army's Air Defense Artillery Branch. Initially using anti-aircraft guns, its roles have evolved over time to include missile defense systems. The group, with headquarters in Fort Sill, Oklahoma, provides tactical and operational capabilities for air defense. It operates across various locations and is part of the U.S. Army's Air Defense Artillery Brigade Combat Team structure. The 54th Artillery Group plays a critical role in protecting military bases, personnel, and key assets against aerial threats.