As the troops leave insurgents will step up their attacks and it will be a routine thing like whats happenning in Iraq.

KANDAHAR, Afghanistan -- Militants killed six Americans, including a young female diplomat, and an Afghan doctor Saturday in a pair of attacks in Afghanistan on Saturday. It was the deadliest day for the United States in the war in eight months.

The violence – hours after the U.S. military's top officer arrived for consultations with Afghan and U.S.-led coalition officials – illustrates the instability plaguing the nation as foreign forces work to pull nearly all their combat troops out of the country by the end of 2014.

The attacks came just days after insurgents stormed a courthouse, killing more than 46 people in one of the deadliest attacks of the war, now in its 12th year.

The three U.S. service members, two U.S. civilians and the doctor were killed when the group was struck by an explosion while traveling to donate books to students in a school in the south, officials and the State Department said.