American soldier mount the U.S. flag on a vehicle near the town of Tel Tamr, north Syria, Sunday, Oct. 20, 2019. Kurdish-led fighters and Turkish-backed forces clashed sporadically Sunday in northeastern Syria amid efforts to work out a Kurdish evacuation from a besieged border town, the first pull-back under the terms of a U.S.-brokered cease-fire. (AP Photo/Baderkhan Ahmad)
U.S. Defense Secretary Mark Esper, center, walks Gen. Scott Miller, right, chief of the U.S.-led coalition in Afghanistan, at the U.S. military headquarters in Kabul, Afghanistan, Sunday, Oct. 20, 2019. Esper arrived Sunday in Afghanistan, where stalled peace talks with the Taliban and persistent violent attacks by the insurgent group and Islamic State militants have complicated the Trump administration’s pledge to withdraw more than 5,000 American troops. He told reporters traveling with him that he believes the U.S. can reduce its force in Afghanistan without hurting the counterterrorism fight against al-Qaida and the Islamic State group. (AP Photo/Lolita C. Balbor)
KABUL, Afghanistan The U.S. may leave some forces in Syria to secure oil fields and make sure they dont fall into the hands of a resurgent Islamic State, Defense Secretary Mark Esper said Monday, even though President Donald Trump has insisted he is pulling troops out of the country and getting out of endless wars.