Pakistan is the third country that U.S. Special Envoy Zalmay Khalilzad has visited in the last week as Washington looks to inject new life into Afghan peacemaking with a U.S. troop withdrawal deadline looming in May. Khalilzad and General Scott Miller, the head of U.S. forces and the NATO-led non-combat Resolute Support mission, met General Qamar Javed Bajwa at Pakistani army headquarters in Rawalpindi, according to the media wing of Pakistan's military.