This very brief cartoon from Japan whose title translated means "The Monkey Fleet" and runs little more than a minute has the Asian monkeys battling octopuses as they both go underwater with the simian animals riding in submarines shooting their torpedo bullets at the sea creatures. The battle scenes are pretty fascinating for animation done in the '30s but the fact that's all you see in such a very short film makes it filler in my eyes. The script was by Chuzo Aoji, with animation by Manzo Miyashita and music (the one I heard on YouTube, anyway) by Joichi Yuasa. Worth a look, anyway, for anyone fascinated by early Japanese animation. Or any animation buff at all.