Speaking of the only direct confrontation between China and the United States after the founding of New China, it was the Korean War that broke out in 1950, which after three years of fighting, the Volunteer Army drove the United Nations army back to the south of the "38th Line", and finally the two sides entered a stage of stalemate, and no one could win the final victory on the Korean Peninsula and shake hands and make peace. But in this war, the United States undoubtedly did not achieve the strategic objectives originally set, and the United States had officially declared a state of emergency long after the second battle, just as it had bombed Pearl Harbor against Japan.
We know that the United States is a highly democratic country, and even the high-ranking president cannot do whatever he wants because of his powerful political opponents and the existence of checks and balances of power. Then this decree issued when the country is in a state of war, this decree can enable the United States to quickly adjust the country's center of gravity to a wartime state, the country's "industrial machine" is completely inclined to war, and it can also increase the president's power in a state of war, so that at least two benefits are conducive to the war situation of the United States in Korea.
First: Accelerate the expansion of the armed forces
War has a "catalyst" for a country to expand its military potential, and just after the decree was issued, the U.S. naval, land, air, and civil defense forces began to accelerate recruitment. The Senate also made a quick plan to expand the Army, the first step being to transfer the 31st and 37th Divisions of the National Guard to the official Service Division of the Federal Army, and to quickly send more troops where they were supposed to go.
At the same time, the United States has also urgently established the National Defense Mobilization Bureau, which is ready to rapidly expand the total number of troops stationed in the United States, including overseas, to 3.5 million in a short period of time to use against the sudden Arrival of Chinese troops on the Korean battlefield. (See Korean War – Wang Shuzeng)
Second: Rapidly expand military production, as it once did with Japan
During World War II, President Roosevelt demanded that the annual production of American aircraft should reach 50,000 aircraft, but the truth far exceeded that. During the Korean War, the Americans demanded that the production of aircraft and tanks be increased by 4 to 5 times from the annual production in 1950.
At the same time, due to the defeat and retreat of the "United Nations Army" led by the US army during the second campaign in Korea, many equipment and materials were abandoned. Therefore, the United States once again mobilized the industrial capacity of the country and Japan to start producing a large number of military supplies, and the continuous flow of them to North Korea was staggering.
It can be said that the defeat of the US military in the second battle made the Americans really begin to look at the newly established country and this unit that they should have been completely ineffective.
The combat effectiveness and high morale of the volunteers fighting in the DPRK surprised the "United Nations Army" and surprised the US military. However, it is obvious that after the end of the first campaign, the Americans still do not think that China has the courage and confidence to directly engage in large-scale confrontation with the United States, but the rout of the "United Nations Army" in the second battle, including the Ace Unit of the US Army, the First Marine Division, made the Americans understand that Chinese is not easy to provoke, and how ridiculous their evaluation of the volunteer army is just "Asian rabble".
So in the continuous offensive of the Chinese, the defeated United States began to enter a "national emergency," just like it once did with Japan! They hope that "a national mobilization" can save the situation in the war on this part of the peninsula and ultimately win the victory. But it is clear that the final result has disappointed the Americans, and the whole world is puzzled why a poor country will repel the United States! Perhaps many things will never be understood in the minds of Americans what it means to defend a homeland.
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