Did your demented leader forget to pack up the toys when he sent the troops home? How the hell do hundreds of amroured vehicles, grenades, guns and ammo get "forgotten" when you leave a country? I mean, they literally just gave the Taliban (who they say is a major terrorist threat and a threat to American troops) some very nice parting gifts.
Hell- if I buy a vehicle at auction they put in export controls so that a jeep does not end up in enemy hands. And they just gave them 50 can guns. This cannot be an oversight- so what was the point of leaving all of it behind? (An excuse to go back in a year to "liberate" the people?)