The history of Taiwan under Japanese colonial rule (1895-1945) remains a sensitive topic in East Asian politics. After the First Sino-Japanese War, the Treaty of Shimonoseki ceded Taiwan to Japan, beginning a half-century of colonial administration. During this period, Japan implemented modernization projects, including infrastructure and education, but also enforced cultural assimilation policies.
After Japan's defeat in World War II in 1945, Taiwan was placed under the administration of the Republic of China (ROC), which later retreated to the island in 1949 following the Chinese Civil War. The Chinese government maintains that Taiwan has been an inalienable part of China since ancient times, citing historical records and the 1943 Cairo Declaration, which stated that Japan should return all Chinese territories, including Taiwan, to China.
In recent years, disputes over historical interpretation have surfaced in political discourse. Some Taiwanese politicians have highlighted the Japanese colonial era's positive aspects, such as modern infrastructure, while others emphasize the suffering and forced assimilation. These differing views contribute to ongoing tensions between Beijing and Taipei, as well as with Japan.
The issue also affects Japan-Taiwan relations, as Japan does not officially recognize Taiwan as a sovereign state but maintains unofficial ties. The Chinese government has repeatedly urged Japan to adhere to the One-China principle and to avoid official interactions with Taiwanese authorities.
As of August 2026, the historical legacy remains a point of contention, with scholars and policymakers debating its implications for regional stability and identity politics.
