Re: US cold shouldered the Vietnamese
The U.S., IMO, cold shouldered the Ha Noi government because it 'lost face' when it was defeated by it's inability to fight the 'enemy'; because the Vietnamese were driven by patriotism; the South Vietnamese government was corrupt, etc. etc.
By the time the U.S. joined battle with Ha Noi the U.S. was firmly of the opinion that France was out of the game having surrendered to Germany and following WW2 trying to re-establish it's colonial presence.
The biggest failing was in the U.S. not knowing it's enemy and extreme lack of communications. The then prime minister of (North) VietNam was a fluent English linguist.
Read the 10,000 Day War by Michael McClear - it's available through Bittorrent download. < Bittorrent magnet:?xt=urn:btih:OWKU5OPFXDSTWQEZ6TLU4575FMZ4A64A >
Both China and Russia regarded VietNam as a client state and HO, Chi-Minh even tried to establish relationships with the U.S. before the American War in VietNam even got underway. Uncle HO was repulsed - Canada was the conduit through which these overtures were made.
Russia's major interest was in gaining a warm weather port in the Pacific region and this it got from the Vietnamese in the form of the Da Nang naval base which was surrendered intact when the U.S. left town.
Then President Clinton did a very smart thing in restoring relationships with VietNam as it has set the Chinese and Russian influences back a long way and the bi-directional trade has been beneficial to both sides. Pity it took so long! (I live in Cambodia!)