When was the Department of Homeland Security founded?

The Department of Homeland Security (DHS) was founded in response to the September 11, 2001 terrorist attacks. The creation of the DHS was part of a larger effort to enhance national security and consolidate various federal agencies charged with protecting the country into a single entity. The official establishment of DHS occurred on March 1, 2003, when it began operations, solidifying its role in coordinating national efforts to safeguard the United States. This aligns with the creation of the department following the 2002 legislation, but its formal operation started in 2003, making it essential to recognize the specific founding date as part of its operational history.