How Afghan war showed limits of US military power

It took only two months for U.S. invaders to topple the Taliban in Afghanistan in 2001, a seemingly tidy success against a government that had given refuge to 9/11 mastermind Osama bin Laden. Twenty years later, the United States is withdrawing — visions of victory long vanished and an ascendant Taliban arguably within reach of restoring their rule.

Afghanistan proved to be a lesson in the limits of America’s military power.