Resolution 82 was adopted by the United Nations Security Council (UNSC) on 25 June 1950. It condemned the "armed attack on the Republic of Korea by forces from North Korea", while calling for "the immediate cessation of hostilities" and for "the authorities in North Korea to withdraw forthwith their armed forces to the 38th parallel". The measure was adopted with 9 voting for, none opposed, and one abstention by Yugoslavia. The Soviet Union was absent, as it was boycotting the UN at the time for its recognition of the Republic of China as China's representative to the organization.
The Korean Peninsula had been divided along the 38th parallel north since the end of World War II between the occupation forces of the United States and the Soviet Union. Each sought to prop up a government on its side of the border, and as the Cold War began to take shape, tensions rose as a proxy conflict developed in Korea. This culminated in the North's invasion of the South on 25 June. Led by the US, the UN backed South Korea, considering it the only lawful government on the peninsula.
