All because of world powers interested in Afghanistan Routes. Russia wanted it.. Americans felt threatened and did not want Russia to have it, they get involved with Pakistan, help make religious ideological fighters (RIFs)and make Russia run away, but then Taliban Govt. forms, US felt threatened again, bombed Afghanistan, Iran wanted its borders secure and away from US interference, so it supported its own RIFs, India sought this opportunity to inflict damage to birth rival Pakistan and started financing other RIFs those who challenged Pakistan internally. Americans failed in Afghanistan but want to leave as a winner. Taliban once again started activity in South Afghanistan and seems to get ready to take Kabul back from US hands. Afghan govt. fearing increased violence begs US not to go. US wants a deal with IRAN to provide an alternate way out of Afghanistan, so US stops its propaganda about the Iranian Nukes. TTP was announced by some criminals trying to borrow good repute of Afghan Taliban among Muslim minds. Pakistan once again got into trouble trying to manage Afghan Refugees, TTP, and several other armed RIFs that were supported by few political men like Qaim Ali Shah in Sindh and Shahbaz Shareef in Punjab. US embassy calls in about 7000 fighters of its own in our country, blind visas were issued by then govt. Iran not happy with Pakistan due to close involvement with US. Turkey was fed up from Kurds and almost approved rebel ideological fighters killing Kurds in toto until Kobani was half taken. Ideological waves of rebels formed State of Levanth reaches Afghanistan and a new enthusiasm of expansionism is generated amoung RIFs... so my dear it is no more an issue of Iran or India or a couple of countries. Whole world is involved, super powers are involved, ideological countries are involved and from last 50 years it is simply worsening, our Army is already doing so much to handle our country and keep us away from ever renewing threats in and around us.. but the problem is ... not regional anymore - it is global now.