USA HISTORY

Detailed explanation-1: -China, U.S. never officially declared war Neither China nor the United States officially engaged in the conflict as nation states: China sent a “volunteer” force and the U.S. dominated and led UN forces.

Detailed explanation-2: -However, the United States never formally declared war on North Korea, China, or the Soviet Union. And, although the U.S. military led the United Nations’ expeditionary force, its involvement was tied only to a UN Security Council resolution, because the UN itself cannot declare war.

Detailed explanation-3: -On October 25, the PRC made an attack on ROK soldiers and routed them at Pukchin. On November 1, the Chinese defeated American troops at Unsan, in the first Chinese-American combat of the war.

Detailed explanation-4: -In some of the fiercest fighting of the Korean War, thousands of communist Chinese troops launch massive counterattacks against U.S. and Republic of Korea (ROK) troops, driving back the Allied forces before them and putting an end to any thoughts for a quick or conclusive U.S. victory.