USN

Naval Security Group Activity (NSGA) Hanza, Okinawa, was a United States Navy signals intelligence (SIGINT) unit established in the early 1950s to support U.S. and allied operations in the Western Pacific. Located near Camp Hansen on Okinawa, NSGA Hanza played a critical role in collecting and analyzing communications intelligence during the Cold War, Vietnam War, and throughout the late 20th century. The unit’s mission included monitoring adversary communications, supporting fleet operations, and providing timely intelligence to U.S. commanders in the region. NSGA Hanza was decommissioned in the early 2000s as part of the Navy’s consolidation of intelligence activities, with its functions absorbed by other units and joint-service organizations.

NTCC Cubi Point, Philippines, was a Naval Telecommunications Command Center established by the United States Navy at Naval Air Station Cubi Point, located within Subic Bay. Activated during the height of the Cold War, the unit played a critical role in providing vital communications support to U.S. naval operations throughout the Western Pacific and Southeast Asia, especially during the Vietnam War. NTCC Cubi Point was instrumental in relaying operational orders, coordinating logistics, and maintaining secure communications between deployed fleets and command authorities. The unit remained active until the closure of U.S. bases in the Philippines in 1992, following the expiration of the Military Bases Agreement.

Reconnaissance Attack (Heavy) Squadron 5 (RVAH-5), known as the "Savage Sons," was a U.S. Navy squadron established in November 1951. Originally designated as Composite Squadron Five (VC-5), it became RVAH-5 in 1964 as the Navy transitioned to the RA-5C Vigilante, a high-speed reconnaissance aircraft. The squadron served with distinction during the Vietnam War, conducting high-risk photo-reconnaissance missions over hostile territory. RVAH-5 continued operations through the 1970s, deploying aboard multiple aircraft carriers, until it was disestablished on September 30, 1977.

**SIMA NRMF Phila** (Shore Intermediate Maintenance Activity, Naval Reserve Maintenance Facility Philadelphia) was a U.S. Navy maintenance unit based in Philadelphia, Pennsylvania. Established to provide vital repair and maintenance support to Naval Reserve ships and craft, SIMA NRMF Phila played a key role in ensuring operational readiness for reserve fleet units along the East Coast. The unit was staffed by a combination of active duty Navy personnel and reservists, specializing in technical repairs, engineering services, and logistical support. SIMA NRMF Phila’s contributions were essential in extending the service life of naval assets and supporting the Navy’s mission until its functions were reorganized or absorbed into larger maintenance commands in the late 20th or early 21st century.

Special Boat Unit-20 (SBU-20) was a U.S. Navy special operations unit established in 1972 and based in Little Creek, Virginia. Its primary mission was to provide maritime special operations support, including insertion and extraction of Navy SEALs and other special forces, coastal patrol, and reconnaissance. SBU-20 operated various small, fast craft capable of stealthy operations in rivers, coastal areas, and open seas. In 1987, as part of the reorganization of Naval Special Warfare forces, SBU-20 was redesignated as Special Boat Team 20 (SBT-20), continuing its legacy of supporting special operations worldwide.

Tactical Air Control Squadron Eleven (TACRON 11), known as TACRON Eleven, is a United States Navy unit that provides tactical air control for amphibious operations. Established in the post-World War II era, TACRON 11 has played a critical role in coordinating the movement and control of aircraft supporting Marine and Navy forces during joint and expeditionary missions. The squadron is responsible for managing air traffic in the amphibious objective area, ensuring safe and efficient air operations from sea to shore. Throughout its history, TACRON 11 has participated in numerous deployments and exercises, supporting U.S. naval power projection and humanitarian assistance missions worldwide.

The United States Indo-Pacific Command (USINDOPACOM) traces its origins to 1947, when it was established as the United States Far East Command in response to growing post-World War II security needs in Asia. In 1957, it was redesignated United States Pacific Command (USPACOM) and given responsibility for all U.S. military forces in the vast Asia-Pacific region. Over the decades, USINDOPACOM has played a central role in major conflicts and operations, including the Korean War, Vietnam War, and ongoing regional security initiatives with allies and partners. In 2018, reflecting the increasing strategic importance of the region, it was renamed United States Indo-Pacific Command, underscoring its expanded focus from the Pacific to the broader Indo-Pacific area.

USNS Harkness (T-AGS-32) was an oceanographic survey ship of the United States Navy, originally launched in 1967. Assigned to Oceanographic Unit 5, the vessel conducted hydrographic and oceanographic surveys, playing a crucial role in mapping the world’s oceans during the Cold War era. The data collected by Harkness supported naval operations, submarine navigation, and scientific research. Throughout its service, USNS Harkness exemplified the Navy’s commitment to technological advancement and maritime domain awareness before being decommissioned in the mid-1990s.

USNS Neptune (ARC-2) was a cable repair ship operated by the United States Navy, commissioned in 1953. Built on a C1-B cargo hull, Neptune's primary mission was the installation, maintenance, and repair of undersea cables crucial for naval communications and surveillance. Throughout the Cold War, Neptune played a vital role in laying and servicing submarine cables, including those associated with the Sound Surveillance System (SOSUS) used for anti-submarine warfare. The ship remained active until 2005, after which it was decommissioned and subsequently stricken from the Naval Vessel Register.