The War in Afghanistan began on October 7, 2001, in response to the September 11, 2001 attacks on the United States. This marked the beginning of the U.S. War on Terrorism. The stated purpose of the invasion was to capture Osama bin Laden, destroy Al-Qaeda, and remove the Taliban regime which had provided support and safe harbor to Al-Qaeda. The U.S. and Britain led the aerial bombing campaign, with ground forces supplied primarily by the Afghan Northern Alliance and supplemented by NATO troops. The U.S. military name of the conflict was Operation Enduring Freedom (OEF).