The Donghak Peasant Revolution led the Korean government to request military assistance from Qing China, a move that intensified rivalry with Japan over influence in Korea and helped set the stage for open conflict.
Japanese and Qing naval forces fought the Battle of Pungdo off Korea, widely treated as the first naval engagement of the war. The action disrupted Qing reinforcement efforts and signaled escalation beyond political crisis.
In the Battle of Seonghwan (often linked to the Asan campaign), Japanese forces defeated Qing troops near Cheonan, undermining Qing positions in southern Korea and facilitating Japan’s drive northward.
Japan and Qing China formally declared war, turning escalating clashes in Korea and surrounding waters into a declared interstate conflict over regional influence—especially Korea’s status and alignment.
Japan defeated Qing forces at the Battle of Pyongyang, a major land victory that pushed Qing troops to retreat northward and strengthened Japan’s military position on the peninsula.
The Battle of the Yalu River (also called the Battle of the Yellow Sea) was a decisive naval engagement that demonstrated Japan’s superior training and operational effectiveness, contributing to Japanese command of surrounding seas.
At Jiuliancheng on the Yalu frontier, Japanese forces defeated Qing troops, marking a significant step in moving combat operations from Korea into Qing territory and toward Manchuria.
Japan took Lüshunkou (Port Arthur) on the Liaodong Peninsula, gaining an important strategic harbor and further pressuring Qing defenses in northeast China.
In the Battle of Weihaiwei, Japan captured the major naval base and effectively neutralized the Beiyang Fleet’s remaining operational capacity, tightening Japan’s control of the sea and accelerating Qing moves toward peace.
The Pescadores campaign secured the islands controlling approaches to Taiwan, helping ensure Japan could take possession of territories slated for cession and limiting Qing ability to reinforce Taiwan by sea.
China and Japan signed the Treaty of Shimonoseki, ending the war. China recognized Korea’s independence and agreed to major territorial cessions (including Taiwan and the Pescadores) and a large indemnity, highlighting Japan’s new status as a major power.
Russia, France, and Germany launched the Triple Intervention, urging Japan to renounce the Liaodong Peninsula on strategic grounds. Japan ultimately agreed, shaping postwar diplomacy and feeding Japanese resentment toward European interference.
Following the treaty’s cession terms, local elites proclaimed the Republic of Formosa in Taiwan in an attempt to resist transfer to Japan, creating a brief interregnum and armed resistance before Japanese occupation.
Japanese forces landed in northern Taiwan, initiating the Japanese invasion of Taiwan (1895) to enforce the new territorial settlement. The campaign overcame organized resistance and established Japanese colonial rule.
The capitulation of Tainan ended the Republic of Formosa’s organized resistance and consolidated Japanese control over Taiwan, inaugurating decades of Japanese colonial administration.
After the Triple Intervention, Japan and Qing China concluded a convention for the retrocession of the Liaodong Peninsula, formalizing Japan’s agreement to return the territory in exchange for additional compensation.
First Sino-Japanese War and Its Aftermath (1894–1895)
