North Korea and South Korea both received help from other nations during the Korean War. Which countries intervened?

During the Korean War, North Korea received support primarily from China and the Soviet Union, which provided troops, weapons, and logistical assistance. In contrast, South Korea was backed by a United Nations coalition, most notably the United States, which led the military efforts to repel the North Korean invasion. Other countries contributing to the UN forces included the United Kingdom, Canada, Australia, and several others. This international involvement significantly influenced the course and outcome of the conflict.