Pre-Colonial American societies were decimated by the biological warfare of the Europeans first. Now America turns its taste for biological warfare on itself. But, anyway, I digress.
America did not invade, or go to war with Afghanistan - it was attempting to liberate it, not annihilate it.
The USA entered alright, but the common meaning of invade is
> (of an armed force) enter (a country or region) so as to subjugate or occupy it.
and subjugate in turn:
> bring under domination or control, especially by conquest.
American did not intend to annihilate Afghans, nor the Vietnamese.
> I don't see the point of this line of questions
That the resistance you describe depends on the behaviour of the aggressor. Could the Japanese resist the atomic bomb? Could German Jews peacefully/non-violently resist the Nazi regime?
In fact they've already destroyed the military infrastructure we left them. "Soldiers" are literally parting out $20 million helicopters for $10,000 in scrap metal.
We should have bombed them for 90 days and declared victory and went home -- it would have been symbolic and pointless, but a lot cheaper in treasure and blood.
Pizzaro defeated the Incas before the diseases did.