The U.S. then constructed airfields on Saipan and Tinian where B-29s were based to conduct strategic bombing missions against the Japanese mainland until the end of World War II, including the nuclear attacks on Hiroshima and Nagasaki.
Amerikanerne byggede herefter flyvepladser på Saipan og Tinian, hvor B-29-er var baseret for at kunne foretage strategiske bombetogter mod det japanske fastland indtil slutningen af 2. verdenskrig, herunder atomangrebene på Hiroshima og Nagasaki.