Why didn't the United States win little Vietnam in the North Vietnam War?

Driven by the "hawks", Johnson, who was unwilling, began to "upgrade" the Vietnam War. Guerrillas in the city are elusive, and the dormitory of American military officers in Saigon was sent to the sky by a truck full of explosives. The turbulent military government in South Vietnam gave Johnson a great headache. After the disobedient dictator Ruan Qing was driven away, the disappointing Saigon government seemed to have initially reached Johnson's "minimum standard". The US Air Force crossed the17th parallel and began to bomb operation rolling thunder in North Vietnam on a large scale, which led to the most important escalation of the United States in the Vietnam War. F- 105 "Leigong" fighter-bomber was frequently shot down by the weak North Vietnamese Air Force, and the Qinghua Bridge and Dumay Bridge still stood in the bombing, which made the American aviation who dominated the world lose face.

At the decisive moment, the "special war" of the United States in South Vietnam was frustrated one after another, which was the end of the road, which made Johnson sitting in the White House very upset. He felt it necessary to adopt new strategies to save this recession. At this time, a little-known strategist Herman Kang En put forward the strategy of "gradual upgrading".

The so-called "gradual upgrading" strategy, in Herman's words, is a kind of competition between "gambling determination" and "gambling adventure" Whoever thinks he has "eaten enough" or "can't stand such risks" first will quit. As long as it is "carefully executed", it will not trigger a nuclear war, because the Soviet Union will not "cause inevitable destruction for its allies".

Obviously, in modern times, it is a dangerous game to wander rashly on the edge of war. However, Herman believes: "As long as any nuclear power takes any conflict in the primary state seriously-or pretends to take it seriously-it will inevitably face various consequences of entering this' gradual escalation' ladder. However, if the strategy of "gradual escalation" is seriously implemented, it can actually reduce the risk of madness and intermittent nuclear destruction.