Top U.S. military leaders will answer questions from senators about the U.S. pullout from Afghanistan, which left behind over 100 Americans. Secretary of Defense Lloyd Austin will testify before the Senate Armed Forces Committee later this month, the top Democrat and Republican on the panel announced Thursday. Gen. Mark Milley, the chairman of the Joint Chiefs of Staff, and Gen. Kenneth McKenzie, U.S. Central Command’s commander, are also slated to appear before the panel on Sept. 28. Also announced was a closed door briefing on Sept. 15 with Gen. Austin Scott Miller, former commander of U.S. Forces-Afghanistan, and a Sept. 30 review of U.S. military operations in Afghanistan that will see senators hear from outside experts. “Although we have completed the withdrawal of American military personnel and over 100,000 civilians from Afghanistan, I remain deeply concerned about the events that accompanied our withdrawal and the ongoing humanitarian crisis. It is …