What was the US his response to the terrorist attacks of September 11, 2001

The US response to the terrorist attacks of September 11, 2001 included launching military operations against the Taliban government in Afghanistan, which was harboring al-Qaeda terrorists, and enacting a number of domestic security measures to prevent future terrorist attacks on US soil, including the creation of the Department of Homeland Security and the Patriot Act. The US also formed partnerships with other countries to combat terrorism and participated in the invasion of Iraq in 2003 as part of the larger "War on Terror."