During World War II, several companies intended to sway the public's opinion in their country's favor by using several unique techniques. American companies such as the Walt Disney Company and Warner Brothers released cartoons aimed at children featuring popular characters such as Bugs Bunny and Donald Duck fighting off the opposing forces. Nintendo supported Japan in a similar way, though not as profoundly as some. In October of 1943, Nintendo released a Backgammon board intended for kids that featured several images that promoted Japan's involvement in the war. All of the images were of different types of animals dressed up as soldiers. Perhaps the most interesting image is of a bunny rabbit and a turtle waving the Japanese flag on a gun with torn up American and British flags laying down at the bottom of the hill they're standing on.
It's interesting to note that years after the war ended, Nintendo got involved with several companies who during the war heavily supported the Allies. Some of these companies include the Walt Disney Company (Nintendo manufactured several products with Disney characters and properties on them, thus tripling their annual sales and allowing them to become a part of the Kyoto and Osaka Stock Exchange), Warner Brothers (Nintendo produced a few items with Bugs Bunny), and King Features Syndicate (Nintendo was allowed to create products with Popeye, including a couple of video games). Twenty years prior to these business ventures, these very cartoons were featured in American World War II shorts, some of which focused exclusively on Japan such as a Loony Tunes video called Tokio Jokio.