Pakistan was worried that the Russians might invade Baluchistan ( a province of Pakistan) and the USA too distrusted Russia as they had been in a cold war for quite some time, so seeing Russia progressing made it help and fund the Mujaheddin aka The Taliban. read more
Now it is Pakistan that "holds the key to the future of Afghanistan," Harrison said. The creation of the Taliban was central to Pakistan's "pan-Islamic vision," Harrison said. It came after "the CIA made the historic mistake of encouraging Islamic groups from all over the world to come to Afghanistan," he said. read more
Under the terms of the agreement, Pakistan's army agreed to withdraw from the areas controlled by the Taliban in Waziristan, and the Taliban promised to stop launching attacks against NATO and Afghan troops in Afghanistan and against Pakistani army and government (Gregory). read more