The Japan Ground Self-Defense Force (JGSDF; Japanese: 陸上自衛隊; Rikujō Jieitai), is the main branch of the Japan Self-Defense Forces responsible for land-based military operations. It is the de facto army of Japan. The JGSDF was created on July 1, 1954. It is sometimes also referred to as the GSDF.
New military guidelines, announced in December 2010 will direct the Jieitai away from its Cold War focus on the Soviet Union to a focus on China, especially regarding the dispute over the Senkaku Islands. The largest of the three services of the Japan Self-Defense Forces, the Japan Ground Self-Defense Force is tasked with maintaining internal security in Japan and operates under the command of the chief of the ground staff, based in the city of Ichigaya, Shinjuku, Tokyo. The present chief of the ground staff is General Kiyofumi Iwata (Japanese: 岩田 清文).
The JGSDF numbered around 150,000 soldiers in 2008. As of 2010, the number remained the same at approximately 150,000 personnel.