President Joe Biden and other top U.S. officials have been stunned by the pace of the Taliban's nearly complete takeover of Afghanistan, as the planned withdrawal of American forces urgently became a mission to ensure a safe evacuation.
The speed of the Afghan government's collapse and the ensuing chaos posed the most serious test of Biden as commander in chief, and he was the subject of withering criticism from Republicans who said that he had failed.
Biden campaigned as a seasoned expert in international relations and has spent months downplaying the prospect of an ascendant Taliban while arguing that Americans of all political persuasions have tired of a 20-year war, a conflict that demonstrated the limits of money and military might to force a Western-style democracy on a society not ready or willing to embrace it.
By Sunday, though, leading figures in the administration acknowledged they were caught off guard with the utter speed of the collapse of Afghan security forces. The challenge of that effort became clear after reports of sporadic gunfire at the Kabul airport prompted Americans to shelter as they awaited flights to safety.
