501st ADA

The 501st Air Defense Artillery (ADA) traces its lineage back to its constitution in 1923 as the 501st Artillery (Antiaircraft), Coast Artillery Corps. Activated for World War II, the unit saw service in key campaigns in the European Theater, providing critical air defense against Axis aircraft. Over the decades, the 501st underwent multiple reorganizations, eventually becoming part of the U.S. Army’s modern air defense command structure. Today, the 501st ADA continues its mission, operating advanced missile defense systems to protect allied forces and assets against aerial and missile threats.