辽东半岛
Port Arthur first came into international prominence during the First Sino-Japanese War (1894–1895). Following Japan's defeat of Chinese troops at Pyongyang in Korea in September 1894, the Japanese First and Second Armies converged on the Liaodong Peninsula by land and sea. Japanese war planners, ambitious for control of the Liaodong Peninsula and Port Arthur and also cognizant of that port's strategic position controlling the northern Yellow Sea routes and the passage to Tianjin, were determined to seize it.