In this Aug. 21, 2017, file photo, President Donald Trump speaks at Fort Myer in Arlington Va., about U.S. strategy in Afghanistan.
In this Aug. 21, 2017, file photo, President Donald Trump speaks at Fort Myer in Arlington Va., about U.S. strategy in Afghanistan. Carolyn Kaster AP
In this Aug. 21, 2017, file photo, President Donald Trump speaks at Fort Myer in Arlington Va., about U.S. strategy in Afghanistan. Carolyn Kaster AP