Rubuta ci gaba don wannan sakin layi - A lokacin Yaƙin Duniya na II, an ba Stewart izini a cikin Army Film and Photographic Unit (AFPU) a 1940 kuma a cikin 1942 ya jagoranci No. 2 AFPU yayin saukowar Allied a Tunisia. A shekara mai zuwa ya shirya hotunan fim daga fadace-fadace a cikin shirin "Desert Victory". A cikin 1944 ya jagoranci "Tunisian Victory" tare da Frank Capra da John Houston, kodayake an harbe yawancin wannan fim a Amurka. Stewart ya ci gaba da jagorantar No. 5 AFPU, yana rufe saukarwar D-Day, Yaƙin Caen
da kuma Rhine Crossing.