<span>Abraham Lincoln had thought about the process of restoring the Union from the earliest days of the war. His guiding principles were to accomplish the task as rapidly as possible and ignore calls for punishing the South. </span>
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.
I would say that the most likely reason is <span>a high birth rate. There's usually a higher birth rate in less developed countries. The higher the birth rate, the more young children, the smaller number of </span><span>an ageing population. </span>
Andrew jackson describe the election of 1824 as a corrupt bargain because he thought south carolina voted for John Quincy adams in order to make it easier to Secede.
Back then, John Quincy simply doesn't have enough vote to be considered as the winning candidate, making the credibility of the election really questionable
hope this helps
