The 636th Field Artillery Battalion is a unit of the United States Army under the Field Artillery Branch. Established in 1940, the battalion has seen active service in various conflicts including World War II, the Korean War, and the Gulf War. Its primary role involves providing artillery support to other ground units through various weapon systems. The 636th Field Artillery Battalion operates under the command of the 2nd Infantry Division at Camp Red Cloud in South Korea. The battalion's motto is "Ready Today, Tomorrow and Forever."