Yokohama is Japan's second-largest city and a major port city located south of Tokyo, with a population of over 3.7 million people.

Fukuoka is a major city in southern Japan, located on the island of Kyushu, and is known for its cuisine and shopping.

The Mongol invasions of Japan in the 13th century were repelled by a combination of strategic planning and a typhoon that destroyed the invading fleet.