The First Sino-Japanese War (1894-1895) marked a pivotal shift in East Asian power dynamics. Japan's rapid modernization and military prowess clashed with China's traditional dominance, resulting in a conflict over control of Korea. The war exposed China's weaknesses and solidified Japan's emergence as a regional power. The Treaty of Shimonoseki (1895) ended the war, forcing China to recognize Korea's independence and cede territories to Japan. This humiliating defeat accelerated the Qing Dynasty's decline, sparked Chinese nationalism, and set the stage for Japan's future expansionist ambitions in East Asia.