Definition that contains defense secretary
- secretary of the navy head of a former executive department; combined with the War Secretary to form the Defense Secretary in 1947
- secretary of war head of a former executive department; combined with the Navy Secretary to form the Defense Secretary in 1947
- war secretary head of a former executive department; combined with the Navy Secretary to form the Defense Secretary in 1947
- navy secretary head of a former executive department; combined with the War Secretary to form the Defense Secretary in 1947