Boeing C-75 Stratoliner - US Air Services April 1942
Several were acquired after war by the French Aigle Azur company and used under contract to supplement the French Air Force during the war in Indochina.
The C-75s were "impressed" (drafted) as most civilian aircraft were at the start of US involvement in WWII. What amazes me is the fact that their civilian aircrews were also "impressed". The aircraft were used to ship high priority cargo to England via Greenland.