In 1952, after many battles, the Chinese People's Volunteer Army had taken the initiative in the ground operations of the War to Resist U.S. Aggression and Aid Korea. In order to win the election and gain benefits at the negotiation table, the "United Nations Army" decided to make a final stand at Shangganling. On October 14, the "United Nations Army" launched a fierce attack on Shangganling. The Chinese People's Volunteer Army soldiers stubbornly resisted the attacks of the "United Nations Army" and repeatedly fought for positions; after entering the tunnel warfare, they continued to fight in an extremely difficult environment; in the decisive stage, they resolutely fought back and continuously consolidated their positions. After 43 days of fighting, the Chinese People's Volunteer Army soldiers finally won the victory. This battle demonstrated China's national prestige and military power. In the following decades, no Western country dared to easily provoke China.