The Department Of Homeland Security (DHS) is a vital agency of the United States government, established in response to the September 11 attacks in 2001. Its primary mission is to protect the nation from various threats, including terrorism, natural disasters, and cyber attacks. DHS works to ensure the safety and security of American citizens through a range of programs and initiatives. DHS encompasses several divisions, including the Federal Emergency Management Agency (FEMA) and the Transportation Security Administration (TSA). These divisions collaborate to enhance the nation's resilience against emergencies and to safeguard critical infrastructure, making the DHS a cornerstone of national security efforts.