March 27, 1945
(20th AF) Mission 46: 151 of 165 Marianas based B-29s flying the first of many raids in support of the impending Okinawa invasion, hit Tachiarai Army Airfield and Oita Naval Airfield.
April 21, 1945
(20th AF) Missions 82 to 90: B-29s blast Oita Airfield.
April 26, 1945
(20th AF) Missions 97 to 107: 195 B-29s (some escorted
by fighters of the VII Fighter Command) bomb Oita Airfield.
April 30, 1945
(20th AF) Missions 127 to 132: B-29s hit Oita Airfield.
May 4, 1945
(20th AF) Missions 140 to 143: B-29s attack Oita Airfield.
May 5, 1945
(20th AF) Missions 144, 145 and 147 to 149: B-29s bomb Oita Airfield.
May 7, 1945
(20th AF) Missions 151 to 154: B-29s bomb Oita Airfield.
May 8, 1945
(20th AF) Missions 155 to 158: 40 B-29s hit Oita Airfield.
May 11, 1945
(20th AF) Missions 167 to 171: B-29s attack Oita Airfield.
July 16, 1945
(20th AF) Mission 272: 124 B-29s hit the Oita urban area destroying 0.555 sq miles, 25.2% of the city
July 29, 1945
(FEAF) B-24s hit Oita.
August 10, 1945
(FEAF) 20+ B-24s bomb the Oita area.
