Which department was created after 9/11 to help fight terrorism in the USA?

The Department of Homeland Security was established in response to the events of September 11, 2001, with the primary mission of protecting the United States from terrorist attacks, natural disasters, and other emergencies. Its creation aimed to consolidate various federal agencies and resources under a single entity to improve coordination and enhance national security measures.

The Department of Homeland Security encompasses a broad range of responsibilities that include border security, immigration enforcement, cybersecurity, and disaster response, all critical in addressing the complex threats that the nation faces. The formation of this department represented a significant shift in how the U.S. government approaches security, emphasizing a comprehensive strategy to safeguard the homeland.

In contrast, the other departments listed have different core functions. The Department of Defense focuses on military operations and national defense, the Department of State handles international diplomacy, and the Department of Justice oversees legal affairs and federal law enforcement. While these departments play important roles in national security, the direct response to 9/11 and the specific focus on combating terrorism domestically led to the establishment of the Department of Homeland Security as a vital component of the U.S. government's strategy to protect its citizens.