What To Know About Japan’s I-400 Underwater Aircraft Carrier

During the last few years of the WWII, Japanese forces had slowly begun to face defeat after defeat due to the aggressive and costly island-hopping campaign being waged by American forces. With impending defeat on the horizon, Japan needed a way to turn the tide of the war, and they needed a way to do it fast, and, as a result, the country turned towards a weapon unlike anything the world had ever seen before.