US officially begins troop withdrawal from Afghanistan, ending 'forever war' after nearly 20 years The Citizen 5 years ago The last 2,500-3,500 U.S. troops and about 7,000 allied forces will be gone by Sept. 11 at the latest. Source: ABC News 6 Share this: Share on X (Opens in new window) X Share on Facebook (Opens in new window) Facebook Share on Reddit (Opens in new window) Reddit Share on LinkedIn (Opens in new window) LinkedIn Print (Opens in new window) Print