We kicked the Taliban’s ass and taught the state supporters of terrorism a lesson that they only now are beginning to forget. I’d say the war in Afghanistan (and Iraq) bought the West a decade of freedom from the most egregious acts of terrorism on its own soil.
True, but the wars also taught the islamic radicals a lesson: The West, and particularly the USA, can be worn down and can ultimately be beaten.
The radicals now believe that history is on their side, and they are right. They are emboldened everywhere, and pushing everywhere.