Maritime East Asia includes the area of modern North Korea, South Korea, Taiwan, Japan (excluding most of Hokkaido), and China (excluding Tibet, Xinjiang, western parts of Qinghai and eastern parts of Heilongjiang).
Moran, J. (n.d.). Maritime East Asia. History Atlas. Retrieved 16 October 2026, from https://www.historyatlas.com/worlds/the-far-east/regions/east-asia/subregions/maritime-east-asia/