HHB 2:55 ADA

Headquarters and Headquarters Battery, 2nd Battalion, 55th Air Defense Artillery (HHB 2/55 ADA) traces its lineage to the original 55th Coast Artillery Regiment, activated in 1918. Over the decades, the unit underwent several reorganizations, serving with distinction in both World War II and the Cold War as part of the U.S. Army’s air defense mission. Reactivated during the Cold War era, 2/55 ADA was equipped with advanced air defense systems and played a key role in protecting critical assets in Europe and the United States. Today, HHB 2/55 ADA continues its legacy by providing command, control, and operational support to its subordinate batteries in air and missile defense operations.