The Taliban were founded in 1994 in order to impose a puritanical Islamic order on Afghanistan. A 2018 estimate by Afghan and U.S. officials gauged that the Taliban included at least 60,000 fighters. These numbers have allowed the Taliban to remain a credible fighting force with the ability to win and hold territory.
Situation in Afghanistan will be an urgent issue for the new leader, although the longest-running US war was hardly mentioned in the bitterly contested presidential elections.