Kabul is going to fall remember the Mosul debacle where Isis took Mosul with relative ease.
Kabul is going to end up the same. Afghan army is melting off at a quick pace.
They can blame Pakistan all they like but the Afghan army had 20 years of weapons, funding to reform themselves into a proper fighting force.
You know Afghanistan even threatened Pakistan with war. How mad can somebody be to threaten a country with nukes and bm's?