What was the US first response to the terrist attacks on September 11th 2001?

In response to the terrorist attacks on September 11, 2001, the U.S. government quickly mobilized emergency services and launched rescue operations in New York City and Washington, D.C. President George W. Bush addressed the nation, condemning the attacks and emphasizing the need for a strong response. The U.S. also began implementing heightened security measures across the country and started coordinating with international allies to address the threat of terrorism. Shortly thereafter, the U.S. initiated military action in Afghanistan to dismantle al-Qaeda and remove the Taliban from power.