Stop in for a cup of coffee

I thought it had to be valid well beyond your planned travel in case you have a problem getting back so it does not run out.
They actually have a system in place in VN, and other Asian countries, where you can get your Visa redone, in country if needed. Normal Visas to VN are typically 3 mos.. The Travel Agency, that my buddy Alex used, picked one year Visa for me... Probably , so they could charge me more... No matter.... Just gives me an excuse to go back sooner, rather than later...