Answer:the us federal goverment
Explanation:
Dr. Martin Luther King Jr. was specifically speaking out against the Jim crow Laws when he made that statement in 1958.
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.
The codename given for that was operation dynamo
