After two decades and billions spent, Afghan government collapses as Taliban takes Kabul

In a swift and stunning rout, Taliban fighters seized control of Afghanistan’s capital Sunday, completing their sweep of the besieged nation as the Afghan government collapsed after two decades of U.S. efforts to reshape the region as part of its “war on terror.”

Embattled President Ashraf Ghani fled the country as the Taliban entered the capital city of Kabul, and American troops scrambled to evacuate thousands of U.S. diplomats and Afghans from the U.S. Embassy.

The Taliban, which had been on the outskirts of Kabul for hours, announced soon after it...