thanks dr.danish , gen hamid Gull explained everything in detail so not much to add. You asked what world got from this war, I had also written that this was the "Zionist's" plan to start the clash of civilization ,they put the gun on the shoulder of US and press the trigger .The zionists are happy that their plan worked to weaken muslim countries and bleed them but at the same time, Israel wanted to linger on "Palestenian Issue " for indefinate period and blame the muslims as terrorists which they got successful but the state terrorism of US and Israel ,world ignored but God almighty is watching ,US suffered humiliation and financial disaster which will put a question mark on their "Super Power " tag .This afghan war will cost US immensly in the near future when their superiority will be evaporated ? US will try to stay in afghainstan but regional powers will not let them do that.