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United States Third Fleet

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Article Genealogy
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United States Third Fleet
Unit nameThird Fleet
CaptionUSS Nimitz operating with carrier strike group
Dates1923–1924; 1943–1944; 1973–present
CountryUnited States
BranchUnited States Navy
TypeFleet
RoleSeagoing combatant command
GarrisonNaval Station San Diego
Notable commandersChester W. Nimitz, Raymond A. Spruance, John S. McCain Jr.

United States Third Fleet is a numbered fleet of the United States Navy responsible for naval forces in the eastern and northern Pacific Ocean. Third Fleet operates carrier strike groups, expeditionary strike groups, and logistics forces to project power, support United States Pacific Fleet, and conduct operations with allies such as Japan Self-Defense Forces, Australian Defence Force, and Republic of Korea Navy. The fleet maintains readiness for contingency operations, humanitarian assistance, and joint exercises with partners including Canadian Forces, Royal Navy, and French Navy.

History

Third Fleet traces roots to fleet organizations created after World War I and played a central role during World War II under commanders like Chester W. Nimitz and Raymond A. Spruance. During the Guadalcanal Campaign and the Battle of Leyte Gulf Third Fleet carrier task forces combined operations with Seventh Fleet and supported amphibious assaults by United States Marine Corps units at Iwo Jima and Okinawa. Postwar demobilization led to reassignments and redesignations tied to commands such as Pacific Fleet (United States) and theater headquarters like United States Pacific Command. In the Cold War era Third Fleet participated in patrols and exercises countering Soviet Navy operations and integrated with commands including United States Seventh Fleet for crises such as the Vietnam War. Re-established in the 1970s, Third Fleet adapted to post-Cold War missions including sanctions enforcement near Kuwait and multinational operations tied to Operation Enduring Freedom and Operation Iraqi Freedom. In the 21st century Third Fleet contributed to disaster relief after the 2011 Tōhoku earthquake and tsunami and participated in freedom of navigation operations near South China Sea features and multinational exercises like RIMPAC and Malabar.

Mission and organization

Third Fleet's mission aligns with strategic guidance from United States Indo-Pacific Command and operational directives from United States Navy. The fleet organizes carrier strike groups built around platforms such as Nimitz-class aircraft carrier, expeditionary strike groups centered on Wasp-class amphibious assault ship or America-class amphibious assault ship, and logistics groups using Lewis and Clark-class dry cargo ship and Supply-class fast combat support ship when underway. Command relationships include task forces coordinated with Military Sealift Command, Naval Air Forces Pacific, and shore establishments like Naval Base San Diego and Naval Station Everett. Third Fleet integrates air wings flying aircraft such as the F/A-18 Hornet, F/A-18E/F Super Hornet, EA-18G Growler, E-2 Hawkeye, and rotary assets like the MH-60 Seahawk under carrier air wing commanders and squadron leaders from Strike Fighter Squadron 11 and other units.

Operational areas and major deployments

Third Fleet's area of responsibility covers the eastern and northern Pacific from the west coast of the United States to the international date line, supporting operations off California coastline, around the Aleutian Islands, and near Hawaii. Major deployments have included carrier strike group transits through the Panama Canal pre-closure of the canal zones, extended patrols in concert with United States Coast Guard for counter-narcotics operations, and surge deployments to support coalition operations in the Indian Ocean alongside Carrier Strike Group Eleven and other numbered fleets. Fleet units have participated in multinational maritime security operations with partners such as Peru, Chile, Mexico, and Japan as part of cooperative engagements and theater security cooperation missions.

Aircraft, ships, and subordinate units

Third Fleet commands a mix of capital ships, surface combatants, submarines, and maritime patrol assets. Aircraft commonly embarked include F/A-18 Hornet, F/A-18E/F Super Hornet, EA-18G Growler, E-2 Hawkeye, P-8 Poseidon, and MH-60R Seahawk. Surface ships assigned operationally or episodically include Nimitz-class aircraft carrier, Gerald R. Ford-class aircraft carrier (transit visits), Ticonderoga-class cruiser, Arleigh Burke-class destroyer, Zumwalt-class destroyer (visits and trials), San Antonio-class amphibious transport dock, and Wasp-class amphibious assault ship. Subsurface forces deploy Los Angeles-class submarine, Seawolf-class submarine, and Virginia-class submarine assets on tasking from Submarine Force, U.S. Pacific Fleet. Logistics and support units include USNS Mercy and USNS Comfort in humanitarian roles and Military Sealift Command tankers and dry cargo vessels. Subordinate units and task forces are numbered as Task Force 30 (operational), Task Force 31 (logistics), Task Force 34 (surface), Task Force 70 (carrier strike), and Task Force 72 (ice operations and hydrography) when activated, working with squadrons such as Carrier Air Wing Nine and Helicopter Sea Combat Squadron 12.

Commanders and leadership

Commanders of Third Fleet have included prominent naval officers such as Chester W. Nimitz, Raymond A. Spruance, John S. McCain Jr., Bruce W. Clingan, and recent leaders drawn from flag ranks in United States Navy. The fleet headquarters at Naval Base San Diego houses the Commander, Deputy Commander, Chief of Staff, Director of Operations (N3), Director of Plans (N5), Director of Intelligence (N2), and other staff sections that liaise with commands like Commander, Naval Air Forces Pacific, Commander, Submarine Force, U.S. Pacific Fleet, and joint partners at United States Indo-Pacific Command and United States Northern Command when domestic support is required.

Training, exercises, and doctrine

Third Fleet leads and participates in exercises and training such as RIMPAC, Talisman Sabre (with Australian Defence Force), Malabar (with Indian Navy and Japan Maritime Self-Defense Force), Vigilant Shield (homeland defense), and bilateral drills with Mexico and Canada. Training includes carrier qualifications at sea off Naval Air Station North Island and expeditionary amphibious rehearsals with United States Marine Corps units at Camp Pendleton and Marine Corps Base Hawaii. Doctrine and tactics are developed in collaboration with institutions like the Naval War College, Center for Naval Analyses, and RAND Corporation, emphasizing carrier strike group operations, anti-access/area denial countermeasures, and humanitarian assistance/disaster relief procedures coordinated with Federal Emergency Management Agency and nongovernmental organizations during contingencies.

Category:United States Navy fleets