The answer to yesterday's question is:
James Forrestal, in 1947. Prior to that, the War Department and Navy Department were separate, independent entities. In 1947 they were merged, along with the newly created Air Force, into the National Military Establishment, which was renamed the Department of Defense in 1949. The Secretary title, though, was created in 1947.
Today's question is:
What is the title of Star Wars Episode III?