During World War II, our favorite cartoon stars did their part to rally the US against the Axis powers, usually for laughs.
Take for example this 1943 Porky Pig offering, which hasn't seen the light of day on TV in I don't know when. "Confusions of a Nutzy Spy" was director Norman McCabe's last effort for WB before being drafted. DJLarryT, who uploaded the video to YouTube, identified which of the Termite Terrace animators did different scenes. Of these, Arthur Davis would later become a director himself, usually doing Porky's shorts.
Don Christensen would later go to work for Filmation and a few other studios, and most toon fans know his name from his Filmation work.
I don't think Egbert, Porky's bloodhound sidekick in this one, was heard from again. Here's "Confusions of a Nutzy Spy":