The U.S. response to the terrorist attacks of September 11, 2001 was to launch the War on Terror, which included military action in Afghanistan to overthrow the Taliban government, who were harboring the terrorist group responsible for the attacks (Al Qaeda). The U.S. also established the Department of Homeland Security to prevent future attacks on American soil and implemented various security measures, including increased airport screenings and surveillance. The U.S. also worked with international partners to track down and capture or eliminate terrorist threats around the world. The response was a significant shift in U.S. foreign and domestic policy, with lasting impacts on global stability and civil liberties.
