American missions against Tsukuba and Tsukuba Airfield
June 27, 1945–July 4, 1945

June 27, 1945
(20th AF) 148 P-51s are dispatched from Iwo Jima, against Tsukuba Airfield but abort because of weather.

July 4, 1945
(20th AF) P-51D Mustangs from Iwo Jima attack Tokyo area airfields including Tsukuba Airfield.