Donald Gets Drafted(1942)

Donald Fauntleroy Duck gets his draft notice and goes in, past all the amazingly enticing recruiting posters, to sign up. First he has to pass the physical. Despite his flat feet, he makes it. Donald wants to fly, but first he has to make it through Sergeant Pete's boot camp. He has a terrible time with close-order drills, and standing at attention without moving when he's over an ant-hill proves a real challenge. Eventually, Donald ends up on endless KP.