These aircraft were called upon to perform many rigorous transport duties early in WW II, including the evacuation of personnel from the Phillipines to Austrailia in December 1941. 

Douglas C-39 transport

Orlando, Fla. - Barely visible beneath the wings of a Lockhead P-38 Lighting are the deadly bombs with which this multi-purpose plane can blast enemy troops, ships and gun emplacements.  As shown in recent demonstartions at the AAF Tactical Center, Orlando, Fla., the Lockhead P-38, now being used as a fighter-bomber, is capable of carrying bomb pay loads up to 2,000 pounds, thus affording the Allies another potent weapon for use against Germany and Japan in coming offensive.

Lockheed P-38 Lighting

War Theatre #12 - France - Airplanes
North American P-51 Mustang figher plane over France. Mustangs served in nearly every combat zone. P-51s had destroyed 4,950 enemy aircraft in the air, more than any other fighter in  Europe. Also used for photo recon and  ground support use due to its limited high-altitude performance. 