Reagan Doctrine legal barriers prohibiting private organizations and citizens from supporting these resistance movements. Within the Reagan administration, the doctrine was quickly embraced by nearly all of Reagan's top national security and foreign policy officials, including Defense Secretary Caspar Weinberger, UN Ambassador Jeane Kirkpatrick, and a series of Reagan National Security advisers including John Poindexter, Frank Carlucci, and Colin Powell. Reagan himself was a vocal proponent of the policy. Seeking to expand Congressional support for the doctrine in the 1985 State of the Union Address in February 1985, Reagan said: "We must not break faith with those who are risking their lives...on
United States Secretary of Defense Department of Defense, "the principal assistant to the President in all matters relating to Department of Defense", and has "authority, direction and control over the Department of Defense". Because the Constitution vests all military authority in Congress and the President, the statutory authority of the Secretary of Defense is derived from their constitutional authorities. Since it is impractical for either Congress or the President to participate in every piece of Department of Defense affairs, the Secretary of Defense, and the Secretary's subordinate officials generally exercise military authority. As the head of DoD, all officials, employees and service members are "under"