Timeline: US Intervention in Afghanistan 2001 to 2017 Posted by Editor on September 27, 2017 in Military “Key developments of a 16-year conflict, from the 2001 US invasion after 9/11 to Trump’s latest strategy reveal.” More … Share this:Click to print (Opens in new window)Click to email this to a friend (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Reddit (Opens in new window) Military