The United States completed its withdrawal from Afghanistan on Monday, bringing an end to America's longest war and closing a chapter in military history that will be remembered for colossal failures, broken promises, and a frantic final exit that claimed the lives of more than 180 Afghans and 13 U.S. service members, some of whom were barely older than the war.Air Force transport jets flew a residual batch of troops from Kabul airport hours before President Joe Biden's Tuesday deadline for shutting down a final airlift and thereby ending...