The author doesn't know history, else he would not have failed to mention that the Afghans never recognized the Durand line border between Afghanistan and Pakistan, the root cause of Af-Pak dispute. He also forgot to mention the Pak ISI's backing of ISKP terrorists as a lever to keep the Taliban in check, and also to promote terrorism in other countries.
The author doesn't know history, else he would not have failed to mention that the Afghans never recognized the Durand line border between Afghanistan and Pakistan, the root cause of Af-Pak dispute. He also forgot to mention the Pak ISI's backing of ISKP terrorists as a lever to keep the Taliban in check, and also to promote terrorism in other countries.