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.
Since September 2003, the Office of the Assistant Secretary of Defense. for Homeland Defense and Americasâ Security Affairs (ASD[HD&ASA]) has been. responsible for developing and ensuring implementation of critical infrastructure. protection policy and program guidance.