PLEASE HELP!!!!!!! WILL MARK BRAINLIEST!!!!!!!! PUT THE FOLLOWING IN ORDER FROM THE FIRST EVENT THAT HAPPENED TO THE LAST!!! TYSM!
____ China Enter the war
____ North Korea Invades South Korea
____ UN troops advance to The Yalu River
____ UN troops retreat to the Pusan Perimeter
____ MacArthur get fired
____ The DMZ separates North and South Korea to the 38th parallel