The FBI, or Federal Bureau of Investigation, is a principal federal investigative agency in the United States. Established in 1908, it operates under the Department of Justice and is responsible for enforcing federal laws, investigating crimes, and gathering intelligence. The FBI focuses on various areas, including terrorism, cybercrime, organized crime, and civil rights violations. The FBI is headquartered in Washington, D.C. and has field offices across the country. It employs special agents and support staff who work together to protect the public and uphold the law. The agency also collaborates with other law enforcement agencies at local, state, and international levels.