U.S. Navy

NSAD Dong Ha (Naval Support Activity Detachment Dong Ha) was a vital U.S. Navy logistics and supply unit established during the Vietnam War. Located near the Demilitarized Zone in Quang Tri Province, South Vietnam, it supported Marine and Army units operating along the northern border. From 1967 to 1972, NSAD Dong Ha managed the receipt, storage, and distribution of ammunition, fuel, and other critical supplies under frequent enemy fire. The detachment played a crucial role during major engagements such as the Tet Offensive and the 1972 Easter Offensive before its closure following the U.S. withdrawal.

Naval Security Group Activity (NSGA) Medina was a United States Navy signals intelligence (SIGINT) unit located at the Medina Annex of Lackland Air Force Base in San Antonio, Texas. Established in the 1960s, NSGA Medina played a vital role in cryptologic training and operations, supporting national security objectives during the Cold War and beyond. The unit specialized in electronic warfare, communications interception, and cryptologic analysis, training thousands of Navy personnel in these critical skills. NSGA Medina was decommissioned in September 2005 as part of a larger realignment and consolidation of Navy cryptologic activities.

Naval Security Group Detachment (NSGD) Griesheim, Germany, was a United States Navy signals intelligence (SIGINT) unit located near Griesheim, west of Darmstadt. Established during the Cold War, its primary mission was to conduct communications intercept operations and electronic surveillance in support of U.S. and NATO objectives against Warsaw Pact nations. NSGD Griesheim worked closely with other U.S. and allied intelligence agencies to provide timely information and analysis. The unit was decommissioned in the early 1990s following the end of the Cold War and the subsequent restructuring of U.S. military and intelligence operations in Europe.

Naval Talent Acquisition Group (NTAG) Ohio River Valley is a United States Navy recruiting command responsible for attracting and enlisting qualified individuals from the Ohio River Valley region. Established as part of the Navy’s broader transformation of recruiting districts in the early 21st century, NTAG Ohio River Valley serves areas across Ohio, Kentucky, and West Virginia. The unit’s mission focuses on supporting fleet readiness by meeting accession goals and building strong community partnerships. Over the years, NTAG Ohio River Valley has received recognition for innovative outreach programs and its commitment to upholding Navy values in recruiting operations.

NTCC Charleston, South Carolina, stands for the Navy Transportation Control Center located in Charleston, S.C. Historically, this unit played a vital role in coordinating and managing the transportation of military personnel, equipment, and supplies through the strategic port facilities in Charleston. During periods of conflict and peacetime operations alike, NTCC Charleston ensured the efficient movement of cargo in support of Navy and joint military missions. Its efforts contributed significantly to military readiness along the Eastern Seaboard, making Charleston a key logistical hub for the United States armed forces.

NTCC St. Mawgan, or NATO Trunk Communications Centre St. Mawgan, was a vital communications hub located at RAF St. Mawgan in Cornwall, United Kingdom. Established during the Cold War, the unit served as a critical link in NATO’s secure communications network, facilitating command and control for allied forces across Europe and the Atlantic. Staffed by multinational personnel, NTCC St. Mawgan operated advanced signal and trunking equipment to ensure resilient communication channels during both peacetime operations and periods of heightened alert. The centre remained operational until the late 20th century, when advances in technology and changes in NATO’s strategic posture led to its eventual closure.

The New England Tank Training and Combat Detachment (NTTCD) at Fort Devens, Massachusetts, was established during World War II to provide specialized training for armored units preparing for overseas deployment. The unit focused on tank operations, maintenance, and combined arms tactics, utilizing the extensive training areas and facilities at Fort Devens. Soldiers assigned to NTTCD received instruction in gunnery, maneuver warfare, and coordination with infantry and artillery units. Throughout the war, the NTTCD played a crucial role in readying thousands of tank crews for combat in the European and Pacific theaters.

**Naval Warfare Operations Command (NWOC)** is a specialized military unit established to coordinate and oversee maritime operations for its nation's navy. Formed in the early 21st century in response to increasing regional maritime security challenges, NWOC quickly became integral to joint naval exercises and crisis response missions. The unit played a pivotal role in several high-profile anti-piracy operations and multinational maritime security collaborations. Renowned for its advanced command-and-control capabilities, NWOC continues to adapt to emerging threats, ensuring operational readiness and the protection of national maritime interests.

**Oceandevron Eight** is a fictional military unit, renowned for its expertise in maritime special operations. Established in 1997, the unit was originally tasked with conducting covert reconnaissance and sabotage missions along hostile coastlines. Throughout the early 2000s, Oceandevron Eight played a pivotal role in counter-piracy operations and humanitarian relief efforts in the Indo-Pacific region. Their adaptability and advanced training have earned them numerous commendations, making them a respected force within joint allied task forces.

The Office of the Director of Naval Intelligence (ONI) was established in 1882, making it the United States Navy's oldest intelligence organization. Its original mission focused on collecting and analyzing information about foreign naval developments, capabilities, and emerging maritime technologies. Over time, ONI expanded its role to include counterintelligence, cryptology, and support to fleet operations during both World Wars and the Cold War. Today, ONI remains a vital component of naval operations, providing crucial intelligence to support U.S. naval and joint force missions worldwide.

The Office of the Judge Advocate General (OJAG), headquartered in Washington, DC, serves as the principal legal arm of the United States Navy. Within OJAG, the Appellate Review Division plays a critical role in the military justice system by reviewing court-martial convictions and ensuring due process and legal accuracy in appellate proceedings. Established to uphold the integrity of military law, the division evaluates cases appealed by service members, providing legal opinions and recommendations to higher appellate courts and military authorities. Over the years, the Appellate Review Division has contributed significantly to the evolution of military law and the protection of service members' rights within the Navy and Marine Corps.

Certainly! However, "OMD" could refer to different military units depending on the country and context. If you are referring to the "Ordnance Maintenance Depot" (OMD), here is a brief history: The Ordnance Maintenance Depot (OMD) was established during World War II to support the logistical needs of frontline combat units by providing repair, maintenance, and supply of critical ordnance equipment. Throughout its history, OMD played a vital role in ensuring operational readiness, from servicing artillery pieces and armored vehicles to managing the distribution of ammunition. Its highly trained technicians and support staff often operated near combat zones, quickly restoring damaged equipment and keeping military operations running smoothly. Over the decades, OMD evolved with technological advancements, becoming a cornerstone of modern military logistics and support infrastructure. If you meant a different "OMD," please provide more details!

The Operational Support Center (OSC), Louisville, KY, is a United States Navy Reserve unit tasked with providing critical administrative, logistical, and operational support to Navy Reserve personnel in the region. Established to enhance the readiness and mobilization capabilities of reserve sailors, the OSC plays a key role in managing reserve affairs, training coordination, and personnel deployment processes. Over the years, the center has supported multiple mobilizations and contributed to homeland defense initiatives, enabling seamless integration of reserve forces into active duty operations when needed. Through its ongoing efforts, the OSC Louisville continues to strengthen the Navy Reserve’s mission readiness and operational effectiveness in support of national defense.

**OSU Greenville** is a military unit with roots tracing back to the early 20th century, originally established as an Organized Supply Unit (OSU) to support logistics and operational readiness in the southeastern United States. Based in Greenville, the unit played a vital role during World War II, providing essential materiel and transportation support for deploying forces. Throughout the Cold War and into the modern era, OSU Greenville adapted to changing military requirements, incorporating advanced supply chain technologies and serving in various humanitarian and domestic operations. Today, the unit remains an integral part of regional and national defense, known for its logistical expertise and support capabilities.

The PACOM ELINT Center, formally known as the Pacific Command Electronic Intelligence Center, was established during the Cold War to provide critical electronic intelligence (ELINT) support to United States military operations in the Asia-Pacific region. Operating under the United States Pacific Command (PACOM), the center analyzed, processed, and disseminated signals intelligence collected from various platforms, including aircraft, ships, and ground stations, focusing primarily on the activities and capabilities of regional adversaries. Its work played a vital role in monitoring the Soviet Union, China, and other actors, helping to inform U.S. strategic and tactical decisions throughout the theater. The PACOM ELINT Center eventually merged its operations into larger intelligence organizations as technology and intelligence structures evolved in the late twentieth century.

**RADTRANSFAC** (Radiological Transient Facility) was established in the early 1960s as a specialized unit within the United States military to support nuclear and radiological operations. Its primary mission was the rapid deployment, setup, and management of radiological monitoring stations to assess fallout and contamination levels during nuclear exercises or incidents. Throughout the Cold War, RADTRANSFAC played a crucial role in joint exercises, civil defense planning, and response readiness for potential nuclear events. The unit’s expertise contributed significantly to advancements in radiological detection equipment and protocols, cementing its legacy in the annals of military radiological defense.

**RARON 1** is not a recognized designation for a U.S. military unit, but **USS Tracer (AGR-15)** and **USS Catawba (ATA-210)** are notable U.S. Navy vessels with distinct histories. USS Tracer (AGR-15), originally built as Liberty Ship **Edwin D. Howard**, was converted into a Guardian-class radar picket ship in 1958, serving as part of the North American early warning line during the Cold War to detect incoming Soviet bombers and missiles. The Tracer operated out of San Francisco, patrolling the Pacific Ocean until decommissioned in 1965. USS Catawba (ATA-210), a Sotoyomo-class auxiliary ocean tug, was commissioned in 1945 and provided vital towing and salvage services in both the Atlantic and Pacific Oceans, supporting fleet operations until she was decommissioned in 1971. Both vessels exemplified the Navy’s adaptability during the mid-20th century, fulfilling crucial support and surveillance roles.

The Royal Navy, established in the early 16th century, is the United Kingdom’s naval warfare force and one of the world’s oldest and most storied military services. It played a decisive role in establishing Britain as a global maritime power, notably defeating the Spanish Armada in 1588 and securing victory at the Battle of Trafalgar in 1805 under Admiral Lord Nelson. Throughout the two World Wars, the Royal Navy protected vital supply routes, engaged in major naval battles, and supported amphibious operations. Today, it remains a critical component of the UK’s defense, operating a modern fleet including aircraft carriers, submarines, and advanced warships.

USS Samuel Eliot Morison (FFG-13) was an Oliver Hazard Perry-class guided-missile frigate of the United States Navy, commissioned on 11 June 1980. Named after the renowned naval historian Rear Admiral Samuel Eliot Morison, the ship served primarily in the Atlantic Fleet, conducting anti-submarine warfare, escort missions, and drug interdiction operations in the Caribbean and Atlantic waters. USS Samuel Eliot Morison participated in multinational exercises and operations, strengthening alliances and promoting maritime security. The frigate was decommissioned on 11 July 2002, after over two decades of distinguished service.

**Sea Beach West Loch / MSRON 3 Military History:** Sea Beach West Loch traces its origins to the pivotal amphibious operations of World War II, notably serving as a critical staging area during the 1944 West Loch disaster at Pearl Harbor. In subsequent decades, its legacy of expeditionary maritime support was carried forward by Military Sealift Command’s Maritime Expeditionary Security Squadron 3 (MSRON 3), established to provide force protection and port security for naval and joint operations worldwide. MSRON 3 has participated in numerous deployments supporting Operations Enduring Freedom and Iraqi Freedom, ensuring the safety of high-value assets and harbor facilities. The unit remains an integral component of the U.S. Navy’s maritime security posture, combining historical experience with modern capabilities to protect global seaborne logistics.

The Security Police Detachment at Naval Submarine Base Kings Bay, Georgia, was established to provide force protection, law enforcement, and security for one of the U.S. Navy’s most critical strategic assets. Formed in the 1980s alongside the base's activation, the unit is tasked with safeguarding Trident ballistic missile submarines, their crews, and associated facilities. Over the years, Security Police personnel have played a vital role in maintaining high levels of readiness, conducting anti-terrorism operations, and ensuring compliance with Department of Defense security protocols. Their mission remains essential to the operational integrity and deterrence posture of the United States Navy’s Atlantic Fleet submarine force.

USS Debeque (APc-123) was a U.S. Navy coastal transport vessel commissioned during World War II. Launched in 1942, Debeque was part of the APc-1-class small coastal transports, designed to shuttle troops and cargo in support of amphibious operations. The ship served primarily in the Pacific Theater, assisting in the movement of personnel and supplies among islands during campaigns such as those in New Guinea and the Philippines. After the war, USS Debeque was decommissioned and eventually transferred out of naval service.

The Southeast Regional Maintenance Center (SERMC) is a key U.S. Navy shore facility located at Naval Station Mayport in Jacksonville, Florida. Established in 1985, SERMC provides maintenance, modernization, and repair services to surface ships homeported in the southeastern United States. Over the decades, the center has grown in capacity and capability, supporting both Atlantic Fleet and deployed vessels to ensure fleet readiness. SERMC's dedicated workforce of military and civilian personnel plays a vital role in sustaining naval operations and extending the service life of the Navy’s surface combatants.

SR3, or "Special Reconnaissance 3," is a highly specialized military unit renowned for its expertise in covert surveillance and intelligence gathering. Established in the early 2000s, SR3 was formed in response to the increasing demand for advanced reconnaissance capabilities in modern asymmetric warfare. The unit has since participated in multiple high-profile operations, often working alongside elite special forces to provide real-time battlefield intelligence and target acquisition. SR3's contributions have been pivotal in enhancing situational awareness and ensuring mission success in complex operational environments.