The United States Army Security Agency (ASA) was the United States Army's signals intelligence branch from 1945 to 1976. The Latin motto of the Army Security...

The United States Army Intelligence and Security Command (INSCOM) is a direct reporting unit that conducts intelligence, security, and information operations...

The National Security Agency (NSA) is an intelligence agency of the United States Department of Defense, under the authority of the Director of National...

definitions of an agency of the federal government of the United States are varied, and even contradictory. The official United States Government Manual...

Defense Counterintelligence and Security Agency (DCSA) is a federal security and defense agency of the United States Department of Defense (DoD) that...

The United States Army (USA) is the land service branch of the United States Armed Forces. It is one of the eight U.S. uniformed services, and is designated...

The Central Security Service (CSS) is a combat support agency of the United States Department of Defense which was established in 1972 to integrate the...

The federal government of the United States empowers a wide range of federal law enforcement agencies (informally known as the "Feds") to maintain law...

The United States Department of Homeland Security (DHS) is the U.S. federal executive department responsible for public security, roughly comparable to...

The United States National Security Council (NSC) is the principal forum used by the president of the United States for consideration of national security...