Question

What might have been the effect on the Vietnam war if the border of Laos had been closed and North vietnam had not been able to operate in the country?

Answer 1

If the border with Laos had been closed and North Vietnam had not been able to operate in the country, the communist side would not have been able to stock up on resources, men, ammunition, weapons, food and medicine through the HoChi Minh Trail.

Therefore, the forces of the North that were fighting in South Vietnam would have been out of supply, and their defeat would have been imminent.