KABUL, Afghanistan – Two U.S. troops were killed in Afghanistan on Friday while carrying out an operation, the U.S.-led NATO coalition said. No details were provided, and their names will not be disclosed until 24 hours after their next of kin are notified, according to Department of Defense policy. But their deaths come as the United States plans to withdraw its 14,000-troop advisory mission in Afghanistan. President Donald Trump recently tied the withdrawal to progress toward a peaceful settlement aimed at ending the 18-year war. Despite the talks, Afghanistan is suffering from crippling violence, with a record number of civilian casualties last year.