The Northern Army (北部方面隊) is one of five active Armies of the Japan Ground Self-Defense Force (JGSDF). It is headquartered at Camp Sapporo in Sapporo, Hokkaidō and its responsibility is the defense of the island of Hokkaidō. It is the largest Army of the JGSDF as on Hokkaidō population and geographic constraints are less limiting than elsewhere in Japan. Most of JGSDF's modern Type 90 tank squadrons are located within the Northern Army's structure.

Organization

Note: The Japanese Defense Intelligence Headquarters also has a classified SIGINT unit based at Camp Higashi Chitose.