File:Looney Tunes Bosko the Doughboy (1931)
Bosko goes to war! From Wikipedia: "Bosko the Doughboy is a one-reel 1931 short subject animated cartoon, part of the Bosko series. It was directed by Hugh Harman, and first released on October 17, 1931 as part of the Looney Tunes series from the Leon Schlesinger animation studio and distributed by Warner Brothers. The cartoon is usually considered one of the better Hugh Harman Bosko cartoons."