The is one of nine active divisions of the Japan Ground Self-Defense Force. The division is subordinated to the Western Army and is headquartered in Kasuga, Fukuoka. Its responsibility is the defense of the Fukuoka, Nagasaki, Ōita and Saga prefectures. The division was established on 15 August 1962. Organization 4th Division, in Kasuga 4th Division HQ, in Kasuga Western Army Tank Unit, in Kusu, with two squadrons of Type 10 main battle tanks (administrative control during peacetime) 16th Infantry Regiment note 1, in Ōmura, with Type 96 Armored Personnel Carriers 40th Infantry Regiment, in Kitakyūshū 41st Infantry Regiment, in Beppu Tsushima Area Security Force, in Tsushima 4th Reconnaissance Combat Battalion, in Kasuga, with Type 16 maneuver combat vehicles, and Type 87 armored reconnaissance vehicles 4th Anti-Aircraft Artillery Battalion, in Kurume, with Type 81 and Type 93 Surface-to-air missile systems 4th Engineer Battalion (Combat), in Ōmura 4th Signal Battalion, in Kasuga 4th Aviation Squadron, in Yoshinogari, flying UH-1J and OH-6D helicopters 4th NBC Protection Company, in Kasuga 4th Logistic Support Regiment, in Kasuga 1st Maintenance Battalion 2nd Maintenance Battalion Supply Company Medical Company Transport Company note 1: Infantry Regiments have only battalion strength. External links Homepage 4th Division (Japanese) Japan Ground Self-Defense Force Division Military units and formations established in 1962