The 12th Brigade (Air Assault) (Japanese: 第12旅団) is one of eight active brigades of the Japan Ground Self-Defense Force. The brigade is subordinated to the Eastern Army and is headquartered in Shintō, Gunma. Its responsibility is the defense of Gunma, Nagano, Niigata and Tochigi prefectures. The brigade was formed on 13 March 2001 with units from the disbanded 12th Infantry Division.