Originally Posted by
Box5
Some may not want to go to North Vietnam (now Vietnam) because it is an enemy country. Up to you.
Enemy of who?
The only country with which they have the occasional territorial dispute is China, but even that is rather mild.
We don't know for sure what passport the OP holds, but if it's U.S. he'd likely have no issues obtaining a visa: the U.S. and Vietnam have had normal relations since the mid-1990's.