Why is the taliban attacking Pakistan?

Pakistan started action against them and completely denounced their Govt./Status in Afghanistan. With this, Taliban, both Afghan and Pakistani Taliban turned against Pakistan (Govt. & Military). This is the reason among many others that Taliban attack Pakistan. read more

Taliban attack Pakistani school – Soldiers patrol the streets in Peshawar, Pakistan, near a school that was attacked by the Pakistani Taliban on Tuesday, December 16. Militants stormed the military-run school in northwest Pakistan, killing more than 140 people, most of them children. read more

After the Peshawar school attack even the Taliban in Afghanistan, with which the TTP is closely affiliated, criticized the "deliberate killing of innocent people, women and children (as being) against Islamic principles" and expressed condolences to the attack's victims, according to spokesman Zabiullah Mujahid. read more