The crew who turned out the Private Snafu cartoon shorts for the U.S. Army during WWII was practically a Who's Who of animation at the time...
"As the ringleader of this circus, Major Capra — later Colonel Capra — oversaw not only the Snafu shorts but also the highly successful Why We Fight series, which would win him an Academy Award for “Best Documentary” in 1943. Typically, these projects were outsourced to local studios with the necessary time and resources at their disposal. When it came down to finding a group of animators willing to take on Private Snafu, Disney proved too expensive and too dictatorial, and so the contract went to Leon Schlesinger’s Warner Bros. Cartoons studio. At the time, the boys of “Termite Terrace” (as the studio was known) were still relatively obscure. In retrospect, though, the talent roster behind the Snafu cartoons reads like a pantheon of animation icons: Chuck Jones, Friz Freleng, Bob Clampett, Frank Tashlin, and the “Man of a Thousand Voices” himself, Mel Blanc. Into this mix, add Theodor Geisel (a.k.a. “Dr. Seuss”), then working as a political cartoonist for the leftist New York newspaper PM, and the merry mashup is complete."
