Nagoya is a major port city in Japan located on the Pacific coast of the main island of Honshu. It is the capital of Aichi Prefecture and the fourth-largest city in Japan. Osaka is another major port city in Japan located on the Yodo River delta in Osaka Bay. It is the capital of Osaka Prefecture and the second-largest city in Japan. Both Nagoya and Osaka are major Japanese ports, playing an important role in the country's economy and transportation network.