Maj. Gen. Christopher Donahue, commander of the Army’s 82nd Airborne Division, and Ambassador Ross Wilson, charge d’affaires at the U.S. Embassy in Kabul, were the final Americans to step aboard the last U.S. military C-17 cargo jet shortly before it lifted off from the Afghan capital’s sole international airport Monday. All told about 6,000 U.S. citizens were evacuated from Afghanistan. They represent the “vast majority” of those who wanted to leave the war-torn country, Marine Corps Gen. Frank McKenzie, commander of U.S. Central Command, told reporters Monday. “There’s a lot of heartbreak associated with this departure. We did not get...