[forz877]

On top of that, the conquered nations were not failed states. The US had a vested interest in protecting western Europe from the soviets, and given the historical and philosophical similarities and background of western Europe to the US, this was rather doable.

Even the US policy towards Japan was rather shrewd.

It's unlikely to see Afghanistan become anymore than what it is regardless of foreign intervention. They don't have the same recent history. It's similar to a Somalia than a Vietnam.