The U.S. response to the terrorist attacks of September 11, 2001, was largely focused on combating terrorism both domestically and overseas. The U.S. military launched the War on Terror with the invasion of Afghanistan in 2001 to root out the Taliban and Al-Qaeda, the terrorist group responsible for the attacks. Additionally, the U.S. implemented various security measures at home and abroad to prevent future attacks, including the creation of the Department of Homeland Security and the passage of the USA PATRIOT Act. The U.S. also formed coalitions with other countries to combat terrorism and sought to disrupt terrorist networks and financing around the world.
