Deputy Secretary of Defense (DSD) Patrick M. Shanahan poses for a photo with Keystone class 18-1 at the Pentagon, March 13, 2018. Keystone educates Command Senior Enlisted Leaders serving in or slated to serve in general or flag officer level joint or service headquarters. DSD Shanahan spoke about the Secretary’s lines of effort for the department. (DoD Photo by Army Sgt. James K. McCann)

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Keywords: defense, deputy, dsd, keystone, national, ndu, seac, secretary, shanahan, university