WASHINGTON (AP) — President Joe Biden made dubious assertions that the U.S. was well-prepared for the sudden collapse of Afghanistan's government during the U.S. drawdown and glossed over his broken promise to keep U.S. troops there until the last Americans are out.

In his remarks Tuesday declaring an end to America's 20-year war in Afghanistan, Biden claimed "extraordinary success" in the mission. That defied the reality on the ground of a rushed and chaotic evacuation of Americans and their allies, including deadly violence around the airport.

Biden offered the faint assurance — even with th...