US considers leaving smaller number of troops in Afghanistan

Secretary of Defense Mark Esper, left, and Chairman of the Joint Chiefs Gen. Mark Milley, testify to a House committee hearing on U.S. policy in Syria, Wednesday, Dec. 11, 2019, on Capitol Hill in Washington. (AP Photo/Jacquelyn Martin)
Chairman of the Joint Chiefs Gen. Mark Milley, far right, and Secretary of Defense Mark Esper, testify to a House committee hearing on U.S. policy in Syria, Wednesday, Dec. 11, 2019, on Capitol Hill in Washington. (AP Photo/Jacquelyn Martin)
Chairman of the Joint Chiefs Gen. Mark Milley, listens during a House committee hearing on U.S. policy in Syria, Wednesday, Dec. 11, 2019, on Capitol Hill in Washington. (AP Photo/Jacquelyn Martin)

WASHINGTON — The Pentagon is considering several options to reduce the number of troops in Afghanistan, including one that would shift to a narrower counterterrorism mission, the top U.S. military officer told Congress on Wednesday.