S. H. Simon Oxford Solid State Basics Oxford 2013 (p. 114) [3] S. Hunklinger FestkÃ¶rperphysik De Gruyter 2014 (p. 55) [4] R. Gross, A. Marx FestkÃ¶rperphysik De Gruyter 2014 (ch. 1.1.1.2) [5] S. Hunklinger FestkÃ¶rperphysik De Gruyter 2014 (p. 56) [6]
The current secretary of defense is Robert Gates. The role of the Secretary of Defense is to be the principal defense policy advisor to the President and is responsible for thâ¦e formulation of general defense policy related to all matters of direct and primary concern to the Department of Defense, and for the execution of approved policy.
Duties of the Secretary of State. Under the Constitution, the President of the United States determines U.S. foreign policy. The Secretary of State, appointed by the President with the advice and consent of the Senate, is the Presidentâs chief foreign affairs adviser. The Secretary carries out the Presidentâs foreign policies through the State Department and the Foreign Service of the United States.