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The Missile Defense Agency (MDA) is a component of the United States government's Department of Defense responsible for developing a comprehensive defense against ballistic missiles. It had its origins in the Strategic Defense Initiative (SDI) which was established in 1983 by Ronald Reagan and which was headed by Lt. General James Alan Abrahamson .
The Defense Human Resources Activity (DHRA) is a United States Department of Defense (DoD) Field Activity chartered to support the Under Secretary of Defense for Personnel and Readiness (USD(P&R)). The scope of DHRA's mission is very broad, giving the USD flexibility to explore and field new technologies and programs that benefit warfighters ...
The Pentagon, headquarters of the United States Department of Defense. The United States Department of Defense (DoD) has a complex organizational structure.It includes the Army, Navy, the Marine Corps, Air Force, Space Force, the Unified combatant commands, U.S. elements of multinational commands (such as NATO and NORAD), as well as non-combat agencies such as the Defense Intelligence Agency ...
the Defense Health Agency (DHA) the Defense Human Resources Activity; the Defense Information Systems Agency (DISA) [a] the Defense Legal Services Agency; the Defense Logistics Agency (DLA) the Defense Media Activity (DMA) the Defense Technology Security Administration; the Missile Defense Agency (MDA) the Defense Advanced Research Project ...
The department was established in 1947 and is divided into three major Departments—the Department of the Army, Navy and Air Force, as well as a number of other component organizations. Department of Defense agencies
The Defense Activity for Non-Traditional Education Support (DANTES) provides no-cost education and career-planning programs for members of the United States Armed Forces. DANTES is the Defense Human Resources Activity component responsible for managing a portfolio of education programs and services that help military members achieve their ...
By 2019, the 27th secretary of defense had begun a line-by-line review of the defense budget; in 2020 the secretary identified items amounting to $5.7 billion, out of a $106 billion subtotal (the so-called "fourth estate" agencies such as missile defense, and defense intelligence, amounting to 16% of the defense budget), [35] [36] He will re ...
The chain of command leads from the president (as commander-in-chief) through the secretary of defense down to the newest recruits. [2] [3] The United States Armed Forces are organized through the United States Department of Defense, which oversees a complex structure of joint command and control functions with many units reporting to various commanding officers.