Soldiers of 2nd Battalion, 1st Air Defense Artillery Regiment, 35th Air Defense Artillery Brigade are greeted by Eighth Army and 35th ADA leaders as they deplane at Osan Air Base, South Korea, Oct. 30, 2025. The 2-1 ADA Battalion departed the Korean peninsula in March on short-notice orders to provide critical air and missile defense for key U.S. and coalition assets in the U.S. Central Command area of responsibility.