The nature of the American military's strategic and tactical decisions made during this period colored the conflict for the duration of the American commitment. The logistical system in Laos and Cambodia should be cut by ground forces, isolating the southern battlefield. However, political considerations limited U.S. military actions, mainly because of the memory of Chinese reactions during the Korean War. Ever present in the minds of diplomats, military officers, and politicians was the possibility of a spiraling escalation of the conflict into a superpower confrontation and the possibility of a nuclear exchange. Therefore, there would be no invasion of North Vietnam, the "neutrality" of Laos and Cambodia would be respected, and "Rolling Thunder" would not resemble the bombing of Germany and Japan during the Second World War.