337 Vietnamese living in guam is really a small percentage, on a 157,000 population. Japanese do actually influence Guam more than the American themselve.....
Contrary to many believe. Most of the Guam resident are native chamarro (did i spell that right??)
It is nearly impossible for US to cede Guam, they hold our biggest non tenanted Airfield outside the US. Andersen AFB is a support base that act as a mid-way refueling station and repair depot to other Naval and Air Force asset in the area.
Long story short. Only stupid people will think they can blockade guam. We successfully supply berlin from the air, why in the hell we would not do it, when the time come, to Guam?? Oh wait, they will then say our fighter and interceptor is useless....
Possible they are planning to breed like rabbits, one good season can increase it 10 fold.