That the Taliban is back is power in Afghanistan on the 20th anniversary of 9/11 is immensely painful to the United States, NATO, and many Afghans. In 2001, the U.S. overthrew the Taliban regime to defeat al-Qaida, a goal it largely accomplished. But the U.S. also sought to vanquish the Taliban and leave behind a pluralistic, human-rights-respecting, and economically-sustainable Afghan state. It failed in those objectives. There were plenty of mistakes and problems with the international efforts.
