and do you think america will engage its entire assets in to a war which will end up in to confirmed defeat ? so far in Afghanistan america has spent about 2 Trillion Dollars, American causalities in Afghanistan up to 2016 were 2,386 about 1,173 american civilian contractors killed up to same year, on the other hand and about 20,049 servicemen were wounded and the entire force is fighting against about 25,000 to 30,000 Talibans so if some one is thinking that they will bomb our assets and will walk away then its a fools dreaming it would have its own repercussion in a long run, trust me if american were able to do that in past they might have done it by now already....