Question: Under what president did William Cohen serve as Secretary of Defense in the years following the death of Esequiel Hernández Jr.?
Sentence (from "Defense Acquisition Board"): The board is chaired by the Under Secretary of Defense for Acquisition, Technology and Logistics and includes the Vice Chairman of the Joint Chiefs of Staff, the Service Secretaries (Secretary of the Army, Secretary of the Navy & Secretary of the Air Force), and a number of Under Secretaries of Defense.
Relevant evidence: No