The strategic bombing campaign was greatly expanded from November 1944 when bases in the Mariana Islands became available as a result of the Mariana Islands Campaign.
Kampanye pengeboman strategis semakin diperluas sejak November 1944 ketika pangkalan di Kepulauan Mariana telah tersedia, ini merupakan salah satu alasan dari Kampanye Kepulauan Mariana.