text: U.S. Army General John Campbell, the commander of international and U.S. forces in Afghanistan, speaks beside a Kunduz city map during a news conference at Resolute Support headquarters in Kabul, Afghanistan, November 25, 2015. The U.S. investigation into a deadly Oct. 3 strike on a hospital run by Medecins Sans Frontieres in the northern Afghan city of Kunduz concluded it was a tragic accident caused primarily by human error, Campbell said on Wednesday. REUTERS/Massoud Hossaini/Pool