…They also may conduct operations as a supported commander when directed by SecDef or the President. (2) Subordinate Unified Commands. When authorized by SecDef through the CJCS, commanders of unified (not specified) commands may establish subordinate…

…When warranted, the President, SecDef, or GCCs may designate a theater of war and/or theater of operations for each operation (see Figure IV-4). GCCs can elect to control operations directly in these operational areas…