In July 1942, the commander of the American Volunteer Group, Colonel Claire Lee Chennault, sought a force of 100 P-47 Thunderbolt fighters and 30 B-25 Mitchell medium bombers, which he believed would be sufficient to "destroy" the Japanese aircraft industry.
Pada bulan Juli 1942, komandan grup sukarelawan Amerika, Kolonel Claire Lee Chennault, mengajukan permintaan 100 unit pesawat temour P-47 Thunderbolt dan 30 unit pesawat pengebom menengah B-25 Mitchell, yang ia percaya akan cukup untuk "menghancurkan" industri pesawat Jepang.