The symbolic importance of the U.S. defeat

The repatriation of troops on 31 August was not due to an "arbitrary deadline", Joe Biden said. "It was designed to save American lives." His predecessor in office, Donald Trump, had reached an agreement with the Taliban and promised the withdrawal of US troops. He himself had the choice of sticking to it or sending tens of thousands more US troops to Afghanistan and continuing the mission.
The repatriation of troops on 31 August was not due to an "arbitrary deadline", Joe Biden said. "It was designed to save American lives." His predecessor in office, Donald Trump, had reached an agreement with the Taliban and promised the withdrawal of US troops. He himself had the choice of sticking to it or sending tens of thousands more US troops to Afghanistan and continuing the mission.