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| 7th Fleet (United States Navy) | |
|---|---|
| Unit name | United States Seventh Fleet |
| Caption | USS Ronald Reagan departing Yokosuka Naval Base with Carrier Strike Group Five |
| Dates | 15 March 1943–present |
| Country | United States |
| Branch | United States Navy |
| Type | Fleet |
| Role | Maritime operations |
| Size | ~50–70 ships, 150+ aircraft, 20,000+ personnel (varies) |
| Command structure | United States Indo-Pacific Command |
| Garrison | United States Fleet Activities Yokosuka |
| Garrison label | Headquarters |
| Nickname | 7th Fleet |
| Battles | World War II, Korean War, Vietnam War, Gulf of Tonkin Incident, Operation Frequent Wind, Persian Gulf deployments, TSV 2017 South China Sea operations |
| Decorations | Navy Unit Commendation, Presidential Unit Citation |
| Commander1 | Commander, U.S. 7th Fleet |
| Commander1 label | Commander |
7th Fleet (United States Navy) The Seventh Fleet is a numbered fleet of the United States Navy operating in the Indo-Pacific region, serving as a forward-deployed maritime force under United States Indo-Pacific Command. It conducts naval diplomacy, deterrence, power projection, and humanitarian assistance alongside allies such as Japan Self-Defense Forces, Republic of Korea Armed Forces, Royal Australian Navy, and Philippine Navy. The fleet's headquarters is at United States Fleet Activities Yokosuka with major elements rotated among Yokosuka, Guam, Singapore, and Okinawa Prefecture.
The fleet's mission aligns with United States Indo-Pacific Command objectives to ensure freedom of navigation through contested waterways such as the South China Sea, support treaty partners including Treaty of Mutual Cooperation and Security between the United States and Japan, and conduct combined exercises with AUKUS partners, Quadrilateral Security Dialogue participants, and regional navies. 7th Fleet provides presence through carrier strike groups like Carrier Strike Group Five, amphibious forces such as Marine Expeditionary Unit, and logistics units including Military Sealift Command vessels. Its peacetime roles encompass naval diplomacy visits to ports such as Manila, Singapore, Busan, and Sydney, and crisis response for events like Typhoon Haiyan and 2011 Tōhoku earthquake and tsunami relief.
Activated during World War II in 1943, the fleet supported operations across the Pacific Ocean Theater including campaigns connected to Admiral Chester W. Nimitz's commands and actions near Guadalcanal, Leyte Gulf, and Okinawa. During the Korean War the fleet provided carrier aviation and naval gunfire in support of United Nations Command forces and participated in Inchon landing-related operations. In the Vietnam War it executed operations tied to the Gulf of Tonkin Incident and Operation Rolling Thunder and later supported Operation Frequent Wind evacuations. Throughout the Cold War 7th Fleet countered Soviet Pacific Fleet expansions and later adapted to post-Cold War contingencies including operations linked to Operation Enduring Freedom and Operation Iraqi Freedom. The fleet has increasingly focused on great power competition involving People's Republic of China and Russian Federation naval activities in the 21st century.
Command elements include the fleet commander at Yokosuka Naval Base, staff components linked to U.S. Pacific Fleet coordination, and subordinate commands such as Carrier Strike Group Five, Destroyer Squadron 15, Task Force 70, Task Force 71, and Task Force 73. Aviation components draw from carrier air wings like Carrier Air Wing Five and land-based patrol wings including Patrol and Reconnaissance Wing 1. Amphibious and expeditionary elements coordinate with III Marine Expeditionary Force and Naval Special Warfare units, while logistics and replenishment rely on Military Sealift Command and Naval Mobile Construction Battalion contingents. Interoperability is enhanced through liaison with partner staffs from Japan Maritime Self-Defense Force, Republic of Korea Navy, Royal Navy, Royal Canadian Navy, and Royal Australian Air Force.
Regular operations include freedom of navigation patrols near Spratly Islands, transits through the Taiwan Strait during heightened tensions involving Republic of China (Taiwan), and carrier presence off the Korean Peninsula during crises such as North Korean nuclear crisis (2017) responses. The fleet leads multinational exercises including RIMPAC, Malabar, Keen Sword, Foal Eagle, Cobra Gold, and Balikatan, and conducts maritime security operations countering piracy off the coast of Somalia and counter-narcotics in the South China Sea and Philippine Sea. Humanitarian missions include responses to Typhoon Haiyan and humanitarian assistance after the 2004 Indian Ocean earthquake and tsunami via coordination with United States Agency for International Development and United Nations Office for the Coordination of Humanitarian Affairs partners.
The primary headquarters at United States Fleet Activities Yokosuka supports forward-deployed carrier strike groups alongside facilities at Naval Base Guam, Kadena Air Base, Andersen Air Force Base, Sasebo Naval Base, Commander Fleet Activities Sasebo, and logistics nodes in Singapore and Subic Bay. The fleet's area of responsibility spans the Western Pacific and Indian Ocean littorals, encompassing strategic chokepoints like the Strait of Malacca, Luzon Strait, and approaches to the South China Sea. It regularly operates in Exclusive Economic Zones adjacent to Philippines, Vietnam, Malaysia, Indonesia, Brunei, and waters near Australia.
Surface combatants include Arleigh Burke-class destroyer, Ticonderoga-class cruiser, and forward-deployed USS Ronald Reagan (CVN-76) carrier assets when deployed, supported by amphibious assault ships such as Wasp-class amphibious assault ship detachments and dock landing ships. Aviation assets range from F/A-18 Hornet and F/A-18 Super Hornet squadrons to P-8 Poseidon maritime patrol aircraft and MH-60R Seahawk helicopters. Subsurface capabilities include Los Angeles-class submarine and deployments of Virginia-class submarine assets through Submarine Squadron 15. Mine countermeasure units employ ships like Avenger-class mine countermeasures ship and unmanned systems; logistics use Lewis and Clark-class dry cargo ship and Fast Combat Support Ship platforms. Command, control, communications, computers, intelligence, surveillance, and reconnaissance (C4ISR) linkages integrate with U.S. Indo-Pacific Command satellites and Naval Information Forces.
Notable incidents include the 2001 collision between USS Greeneville (SSN-772) and the fishing vessel Ehime Maru near Honolulu; the 2007 USS Port Royal (CG-73) grounding near Hawaii; the 2017 USS Fitzgerald (DDG-62) and 2017 USS John S. McCain (DDG-56) collisions with merchant vessels in or near Tokyo Bay and the Strait of Malacca resulting in casualties and subsequent investigations by Navy Times-reported boards. Other accidents involved aviation mishaps of F/A-18 and SH-60 airframes during carrier operations, and submarine incidents such as maintenance-related accidents aboard submarine tender-supported boats. These events prompted procedural reviews by Chief of Naval Operations and changes in readiness, training, and navigation protocols across fleet units.
Category:United States Navy fleets Category:Military units and formations established in 1943