Tensions between Washington and Islamabad are at an all time high over Pakistan’s support for the Afghan Taliban. While Pakistan has long been the Taliban’s patron, providing it with sanctuary, the insurgents’ attacks on the US Embassy in Kabul and other high-profile NATO targets this fall have pushed long simmering tensions to a boil. Pakistan is encouraging provocative Taliban operations, raising questions: What is Pakistan’s goal in Afghanistan? What endgame does Pakistan’s army seek in the Afghan war?