As with Germany and Japan, national ignorance is generational and dependent up on the "leaders". When you "take out" the national leadership, as bad as it was, it leaves a nation of unguided and a "replacement" national focus MUST be forced in. A nation of 25 million, as in Afghanistan, should have been able to deal with 20000 or 30000 Taliban/Al Qaeda but their refusal to fight for their county, for their kids, for their families and even selling their own kids to the Taliban for suicide bombers meant we had to salvage their country for them. If we had not used the Marshal plans with Germany and Japan, we would still be at each others throats.
If you have to fight, then fight like there is no tomorrow, because there may not be.Otherwise, stay home and watch the tv...