Still missing the point Feanor. I don't dispute the aid to North Vietnam by China and Russia.Yep. It was those guys with the AKs. The massive military aid from another super power had nothing to do with it.
In Afghanistan's context we know that Norinco arms shipments to Iran have been intercepted on mule trains being smuggled into Afghanistan. Which is why I refer you back to my original point. Take the gloves off and deal to Iran in a properly declared war.
The point you miss is that in South Vietnam it was still hoardes of little guys with AK-47 that defeated the mightiest millitary machine of the day.
If you don't get that now 35 years later you never will.
The region already is destabilised and it is not a case that if one does nothing it will come right by itself. The Iranian people don't want a war any more than the American people do but the leadership of Iran is itching for confrontation and a nuclear one at that. They will not stop unless stopped.Launch another Western led war against another country in the region, to add to the list?
At the risk of further destabilising the region?