[1] The U.S. military ordered the construction of the Washington Heights complex by the Japanese government,[3] and maintained control of it after the signing of the Treaty of San Francisco.
Although the treaty returned Japanese sovereignty in late April 1952, military forces would remain, including those housed at Washington Heights.
This resulted in protests from Japanese university students in early May, but expected attacks on the housing complex never materialized.
[4] The Treaty of Mutual Cooperation and Security between the United States and Japan, signed in 1960, determined that Washington Heights would remain in operation.
The transfer was completed in 1964, with the Japanese government bearing the full amount of relocation expenses for U.S. military families moving to Chofu Airport.