Vietnam is the least likely place for that, in all of SE Asia
Viêt Nam is not the desperate population of the War. Vietnamese seem to be born doing business and they have gone from general extreme poverty to pretty widespread relative prosperity in two decades.
I predict that when WW III comes we will be sending American Bays and Girls to fight invading Chinese Troops, side by side with Vietnamese soldiers. But without our carriers or bases close they will be out on a limb and face a Bataan Like fight.