The 38th Air Defense Artillery Brigade (38th ADA) was originally activated during World War II in 1943, serving in the European Theater as an anti-aircraft artillery unit. After the war, the brigade was inactivated and later reactivated during the Cold War, with its mission shifting to air defense amid evolving global threats. The 38th ADA played a critical role in the defense of U.S. and allied interests in the Pacific, particularly on the Korean Peninsula, by operating advanced missile defense systems like the Patriot and THAAD. Today, the brigade continues to provide vital air and missile defense capabilities for U.S. Forces Korea and remains a key component in regional security and deterrence.