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

The United States launched a global war on terrorism

The United States pulled out all troops fighting in other countries

The United States held a world, summit to best determine the scopes of the threat

The United States did not believe there were other threats

The United States launched a global war on terrorism, focusing on targeting terrorist organizations such as al-Qaeda and their supporters. This included military actions in Afghanistan to eliminate the Taliban government, who had supported al-Qaeda, as well as increased surveillance and security measures both domestically and internationally. The United States also worked with international allies to combat terrorism and improve intelligence sharing.