Okubo Airfield

Military conversion and land redevelopment. Following the end of the post-WWII Allied occupation of Japan, the airfield was deemed surplus to the needs of the U.S. military. It was returned to the Japanese government, which then repurposed the land for both the newly established Japan Self-Defense Forces (JSDF) and for extensive civilian urban development to accommodate the growing population.

The site of the former airfield has been completely redeveloped and is unrecognizable as an airport. A large portion of the land is now occupied by the Japan Ground Self-Defense Force (JGSDF) Camp Okubo (陸上自衛隊大久保駐屯地), a major military installation. The remainder of the area has been transformed into a dense suburban landscape with residential neighborhoods, public schools (e.g., Uji City Okubo Elementary School), commercial properties, and public parks. The original runways and aviation infrastructure have been entirely removed.

The airfield has a two-phase history.
1) **Imperial Japanese Era (1941-1945):** Originally established in 1941 as Uji Airfield (宇治飛行場), it served as a flight training school and base for the Imperial Japanese Army Air Service during World War II.
2) **U.S. Occupation Era (1945-1957):** After Japan's surrender, the facility was taken over by the U.S. Army and renamed Okubo Airfield. It was used as a communication, logistics, and transport base, playing a support role during the Korean War. The identifier JP-2108 is a modern, unofficial code used in historical airfield databases and was not its official ICAO code during its operational period.

Zero. There are no plans, discussions, or prospects for reopening the site as an airport. The land's current use as a critical JGSDF military base and a densely populated urban area makes reopening logistically, financially, and politically infeasible.