I beg to differ here.
Partitioning Afghanistan is NOT IN PAKISTANS INTEREST. Pakistan does not need or require Pashtun territory currently part of Afghanistan. Pakistan itself is already over populated with 230+ million people. Taking on Pashtun areas would easily bring in 25+ million and over burden the broken system as it is at the moment.
Pakistan doesnt have the capacity to deal with its population as it is so in no way will we be able to take on Pashtun territory.
Pakistan's Primary Interest in Afghanistna would be the following
- Allowing women to go to school and participate in public life
- Crack down on anti Pakistan TTP and BLA terrorist
- Cooperate with Pakistan in counter insurgency operations. Taliban would provide ground troops and Pakistan would provide Drone/air force
- Access to Afghanistans natural resources such as coal/ rare metals/ copper/ iron ore/ and even Uranium which is used in our nuclear reactors.
- Pipeline to Turkmenistan that is built + secure
- Access to trade routes to central asia where Pakistan will become influential. Our of all the STANS pakistan alone contributes 60-70% or population and GDP
All of these will require a stable, secure, and terrorist free Afghanistan.