How many B-17s took off from Midway for the first air attack ?
Fourth Shuttle Mission ( Fifteenth Air Force ) 4 August 1944 : In an attempt to comply with the first direct Soviet request for USAAF air strikes , 70 + P-38s and P-51s of the Fifteenth Air Force leave Italy , attack the airfield and town of Focşani , Romania and land at bases in the USSR .