How did the U.S. respond to the terrorist attacks on September 11, 2001?

The correct response highlights a significant shift in U.S. foreign and domestic policy following the terrorist attacks on September 11, 2001. The events of that day, when al-Qaeda carried out coordinated attacks that resulted in the deaths of nearly 3,000 people, prompted an immediate and extensive response from the U.S. government.

The War on Terror, initiated by the U.S., involved military operations aimed at dismantling terrorist organizations and addressing the underlying issues that foster terrorism. This included not only the invasion of Afghanistan to dismantle the Taliban regime, which was harboring al-Qaeda, but also a broader strategy that extended to various regions around the world. The War on Terror encompassed various military, intelligence, and law enforcement efforts designed to prevent further attacks and enhance national security.

This response also included the establishment of the Department of Homeland Security and the implementation of significant domestic security measures; however, the emphasis on military action and the international dimension of the response underscore the profound implications of the attacks for U.S. foreign policy and global military engagement. The shift towards a more aggressive military posture reflects a direct reaction to the perceived threat posed by terrorism and the commitment to counter it through various means, including armed conflict.

In contrast, the other responses offered