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Defense Intelligence Headquarters

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Defense Intelligence Headquarters

The Defense Intelligence Headquarters (情報本部, Jōhōhonbu) is a military intelligence and signal intelligence agency of the Japanese government, under the jurisdiction of the Japanese Ministry of Defense. It is currently one of the biggest Japanese intelligence agencies.

Back in the 1980s, the former Defense Agency had several intelligence divisions with different duties. Among these intelligence divisions in the Defense Agency had included those from the Central Data Command Unit, the Joint Staff Council's Second Office and the three branches from the chiefs of staff in the Japan Self-Defense Forces (JSDF). Most of the DIH's establishment was based on the Annex Chamber (or Special Annex), Second Intelligence Division, Ground Staff Office. They collected signals from the Sino–Soviet border conflict of 1969 and the Soviet Afghan war of 1979. They were also involved in intercepting communications that led to and after the shooting of Korean Air Lines Flight 007 through the Wakkanai Station.

A supposed plan to integrate the intelligence divisions of the three JSDF branches started in 1988 before lack of cooperation and subordination ended it.

Plans to consolidate all the intelligence bureaus of the old Defense Administration into one agency had started in the 1990s after the National Diet had passed a law in May 1996, calling for the creation of a central military intelligence agency before the DIH was eventually established on January 20, 1997 after intelligence units from the JSDF, Japanese Defense Agency and the Joint Staff council are united with the appointment of Lieutenant General Kunimi Masahiro as the agency's first commanding officer.

Initially, DIH civilian and military staff members were numbered at 1,580 with a planned manpower of 2,000 personnel before it reached its current manpower of 2,300 staff members. In 2011, the manpower is 1,907 members

Spy satellites had been planned for launch in 1998 as part of augmenting the DIH's intelligence gathering capabilities. Though two were able to launch into space, two more were destroyed in a botch attempt to send them to space.

In 2005, the DIH has suffered its first internal leak of classified information when a Colonel in the JASDF had been arrested for allegedly leaking information regarding the accident of a People's Liberation Army Navy Submarine that took place in the same year in the South China Sea.

The DIH had announced in 2006 that a liaison office was established in Washington, D.C., with the National Security Agency.

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