Guide
The Ichigaya Memorial Hall is a significant architectural relic located within the Ministry of Defense grounds near the Yakuoji-mon Gate in Shinjuku, Tokyo. This facility is a relocated and restored section of the original 'Building No. 1.' It preserves the architectural style of the Imperial Japanese Army Academy headquarters, which was constructed in 1937 (Showa 12). The site serves as a physical testament to crucial chapters in Japan's modern history, having served as the Ministry of War, the Imperial General Headquarters, and the site of the Great Hall used during the International Military Tribunal for the Far East.
The history of this site traces back to the era of the Imperial Japanese Army Academy. Originally built as the headquarters for the academy, the site's role evolved through various stages of Japanese military history. It served as a central hub for the Ministry of War and the Imperial General Headquarters during the Pacific War era. Following the war, it held significant historical weight as the location for the International Military Tribunal for the Far East. From the 1960s, the area was used by the Eastern Army of the JGSDF and was also the site of the Mishima Incident in 1970. While much of the original structure was demolished due to the construction of the new Ministry of Defense headquarters, vital sections—including the 'Benzen-no-ma' (Imperial Audience Chamber) used during visits by the Emperor and the 'Principal's Office' (formerly the Army Minister's office)—were relocated and restored to their current location in 1998.
The facility preserves fragments of highly significant historical architecture. Visitors can observe the grand architectural structures that convey the majesty of the former Army Academy, such as the Great Hall and ceremonial spaces. The relocated 'Benzen-no-ma' and the 'Principal's Office' serve as precious primary sources that illustrate the specific architectural styles and functions of that era. These spaces represent a point where Japan's military and political histories once intersected.
Access to the Ichigaya Memorial Hall is primarily granted through the 'Ichigaya-dai Tour' organized by the Ministry of Defense. Visits are subject to the tour schedule. The main viewing hours are during the daytime on weekdays (approximately 9:00 AM to 4:00 PM), though the specific content of the tour may vary based on the current schedule. While the exterior architecture is visible regardless of weather, it is essential to check the tour reservation status beforehand.
Visitors can explore parts of the Ichigaya district, including this memorial, by participating in the official 'Ichigaya-dai Tour' hosted by the Ministry of Defense. This program is designed not just for architectural sightseeing, but to deepen understanding of Japan's defense and history. It offers a rare opportunity to see the internal structures and the atmosphere of the former Imperial Japanese Army Academy.
The facility is situated within the Ministry of Defense grounds, which also includes a memorial zone dedicated to fallen service members. This area features monuments for those who lost their lives in the National Police Reserve and various branches of the Self-Defense Forces (Ground, Maritime, and Air). For convenience, the site's welfare building contains retail options such as convenience stores (FamilyMart, Seven-Eleven) and cafes (Doutor Coffee).
As this facility is located within the Ministry of Defense, security is strictly managed. The main gate is staffed 24/7 by civilian security and Self-Defense Force personnel, and some areas may be under armed guard. Please note the following: