The Jeju Uprising was a significant event in South Korea's history that took place from April 3, 1948, to May 1949. It began as a response to political repression and social unrest on Jeju Island. The local population protested against the government’s policies, which they felt marginalized them, leading to violent clashes between civilians and government forces. The uprising resulted in a tragic loss of life, with estimates of casualties ranging from 14,000 to 30,000 people. The South Korean government, supported by the United States, implemented harsh measures to suppress the rebellion. The event is remembered as a dark chapter in the history of post-war Korea, highlighting issues of human rights and government authority.