 On 8 December 1941, the US Far East Air Force consisted of the 19th Bombardment Group (Heavy) under Colonel Eugene L. Eubank at Clark and the 24th Pursuit Group under Colonel Orrin L. Glover, also at Clark.The 19th had 

The total number of available military airplanes at that moment was over 142 aircraft (not counting the O-46s and O-52s).Within a few hours, despite heroic efforts, almost all of these aircraft, with the exception of the ones deployed to Mindanao, were gone.