Hardly a week has passed since the conditional peace treaty between the U.S. and the Taliban, and American troops are already leaving the country.

Despite evidence that the Taliban have resumed attacks on Afghan government forces, U.S. Defense Secretary Mark Esper has given the order for the United States to begin withdrawing troops from Afghanistan.s.

Esper, speaking to the media on Monday, said that the troop withdrawal order to Army Gen. Scott Miller, the commander of U.S. forces in Kabul, is in keeping with the peace deal with the Taliban. The peace deal calls for an American troop reduction to begin within 10 days of the deal’s signing.

“My instructions to the commander [were]: ‘Let’s get moving, let’s show our full faith and effort to do that,'” Esper said in Washington with the Joint Chiefs General Milley also in attendance. “I’ve said on many occasions that I’m comfortable we can still conduct all the missions we need to conduct [with] 8,600 [troops].”

The Americans are to cut 4,000 troops in Afghanistan within the first 135 days according to the terms of the deal. There are currently 13,000 U.S. troops in Afghanistan; the remaining 8,600 would leave within 14 months.

Despite the show of good faith by the U.S., both Esper and Milley advised to temper any expectations of lasting peace after a bomb killed three Afghans and wounded 11 in Khost province. “To think that there’s going to be an absolute cessation of violence in Afghanistan, that is probably not going to happen,” Army General Mark Milley, the Chairman of the Joint Chiefs, told reporters at the Pentagon press conference. 

“To think that it’s going to go to zero immediately, that is probably not going to happen. It’s probably not going to go to zero,” Milley added. 

Monday’s attack by a bomber on a motorcycle at a soccer game is being investigated. However, both Esper and Milley said there wasn’t sufficient information to place blame yet. “We don’t know exactly who did that yet,” Milley said. The Taliban have denied responsibility for the attack