On 25 August 1945, the Soviet 25th Army entered Pyongyang and it became the temporary capital of the Provisional People's Committee for North Korea. A People's Committee was already established there, led by veteran Christian nationalist Cho Man-sik. Pyongyang became the de facto capital of North Korea upon its establishment in 1948. At the time, the Pyongyang government aimed to recapture Korea's official capital, Seoul. Pyongyang was again severely damaged in the Korean War, during which it was briefly occupied by South Korean forces from 19 October to 6 December 1950. The city saw many refugees evacuate when advancing Chinese forces pushed southward towards Pyongyang. UN forces oversaw the evacuation of refugees as they retreated from Pyongyang in December 1950. In 1952, it was the target of the largest aerial raid of the entire war, involving 1,400 UN aircraft.