The USS Mount Whitney (LCC/JCC 20) is a Blue Ridge class command ship of the U S Navy; it is the flagship of the Sixth Fleet. She is also the command and control ship for the Commander Joint Command Lisbon and the Commander Striking Force NATO. She had previously served for years as the COMSTRIKFLTLANT(NATO Designation) / Second Fleet's command ship.
She was classified as the LCC-20 on 1 January 1969, and she was laid down on 8 January by Newport News Shipbuilding & Drydock Company, Newport News, Virginia.
Alleged to be the most sophisticated Command, Control, Communications, Computer, and Intelligence ship ever commissioned, Mount Whitney incorporates various elements of the most advanced C4I equipment and gives the embarked Joint Task Force Commander the capability to effectively command all units under his or her command.
The Mount Whitney can transmit and receive large amounts of secure data to and from any point on earth through HF, UHF, VHF and SHF (satellite communications) communications channels. This electronic technology enables the Joint Intelligence Center and Joint Operations Center to provide the most timely intelligence and operational support available in the Navy.