31st ADA

The 31st Air Defense Artillery (ADA) traces its origins to its constitution in the Regular Army in 1918 as the 31st Artillery (Coast Artillery Corps), serving initially in World War I. Reactivated and reorganized multiple times, the unit was heavily involved in air defense missions during World War II and the Cold War, adapting to emerging technologies and threats. Throughout its history, the 31st ADA has provided critical air and missile defense capabilities in various theaters, including support for NATO and deployments to the Middle East. Today, the brigade remains a key component of the U.S. Army’s air defense mission, equipped with advanced systems such as the Patriot missile.