This is as much a tragedy as them going in there in the first place. What a colossal waste of effort, money and lives.

KABUL, Afghanistan — U.S. troops and their Western allies have departed the U.S. military base that coordinated the sprawling war in Afghanistan, officials said Friday, effectively ending major U.S. military operations in the country after nearly two decades.

For generations of U.S. service members, the military hub, Bagram Airfield, was a gateway to and from a war that cut across constant changes on the battlefield and in presidential administrations. But the final withdrawal overnight Thursday occurred with little fanfare and no public ceremony, and in an atmosphere of grave concern over the Afghan security forces’ ability to hold off Taliban advances across the country.

The U.S. exit was completed quickly enough that some looters managed to get into the base before being arrested, Afghan officials said.
U.S. leaves its last Afghan base, effectively ending operations | The Seattle Times