The Department of Homeland Security (DHS) is a vital U.S. government agency established to protect the nation from various threats, including terrorism, natural disasters, and cyber attacks. Formed in response to the September 11 attacks, DHS coordinates efforts across multiple sectors to ensure the safety and security of American citizens. DHS encompasses several divisions, including the Federal Emergency Management Agency (FEMA) and the Transportation Security Administration (TSA). Its mission is to enhance the nation's resilience against hazards while promoting a secure environment for the public. Through collaboration with state and local agencies, DHS aims to safeguard the homeland effectively.