1:55th ADA

The 1st Battalion, 55th Air Defense Artillery Regiment (1/55th ADA) traces its origins to the early 20th century, initially formed as part of the U.S. Army’s expanding coastal and anti-aircraft defenses. Throughout World War II, the unit served with distinction, providing critical anti-aircraft support in various theaters of operation. During the Cold War, 1/55th ADA was reorganized and equipped with advanced missile systems, such as the Nike Hercules, to defend against aerial threats in Europe and the United States. In subsequent decades, the unit continued to adapt to evolving air defense technologies before its eventual inactivation as part of broader force restructuring efforts.