United States Submarine Service

United States Submarine Service. It is the submarine warfare service branch of the United States Navy and is informally known as "The Silent Service." The service operates the world's most advanced nuclear-powered submarine fleet, encompassing ballistic missile submarines for strategic deterrence and attack submarines for a wide array of naval missions. Its history is marked by pivotal roles in conflicts from World War I to contemporary global operations, requiring a highly specialized and rigorously trained force.

History

The service's origins trace to the 1900 commissioning of USS Holland (SS-1), the Navy's first modern submarine. Its capabilities expanded significantly during World War I, conducting patrols against German U-boats. The interwar period saw technological advances and tactical development. During World War II, the Gato, Balao, and Tench-class fleet submarines waged a devastating commerce raiding campaign against the Empire of Japan, crippling its merchant marine and naval forces in campaigns like the Battle of Leyte Gulf. The postwar era was defined by the Cold War and the leadership of Hyman G. Rickover, who pioneered the Naval Reactors program, leading to the launch of USS Nautilus (SSN-571), the world's first nuclear-powered submarine. This began an enduring technological rivalry with the Soviet Navy, involving covert intelligence missions, such as those conducted by USS Halibut (SSGN-587), and the development of the Ohio-class submarine.

Organization

Operational command of submarines is divided between geographic and functional combatant commands. The United States Pacific Fleet and the United States Fleet Forces Command provide fleet administration and training for submarines in the Indo-Pacific and Atlantic theaters, respectively. Strategic ballistic missile submarines (SSBNs) fall under the United States Strategic Command for deterrent patrols. Submarine development, acquisition, and maintenance are overseen by Naval Sea Systems Command (NAVSEA), with the Program Executive Office, Submarines managing specific classes. Key operational units include submarine squadrons, which oversee several boats, and individual submarine crews.

Submarine classes

The modern fleet consists entirely of nuclear-powered vessels. The Ohio class serves in two configurations: as SSBNs armed with Trident missiles and as guided missile submarines (SSGNs) carrying Tomahawk cruise missiles. The frontline attack submarines are the Seawolf class, designed for Cold War-era deep-water operations, and the larger, multi-mission Virginia class, which is currently in production. The Los Angeles class forms the backbone of the attack submarine force. The future Columbia class is under development to replace the Ohio-class SSBNs, while the SSN(X) program aims to develop a next-generation attack submarine.

Personnel and training

Submarine officers are primarily trained at the United States Naval Academy or through Naval Reserve Officers Training Corps programs, followed by rigorous instruction at Naval Submarine School in Groton, Connecticut. Enlisted sailors undergo intensive "A" and "C" schools for technical ratings like sonar technician and machinist's mate. All personnel must complete the demanding Dolphin qualification, a comprehensive examination of all submarine systems. Prospective commanding officers and executive officers attend the Submarine Officer Advanced Course in Groton. The service maintains exceptionally high standards for mental and physical fitness due to the demanding environment of prolonged submerged deployments.

Operations and missions

Primary missions include nuclear deterrence, with SSBNs conducting continuous strategic patrols. Attack submarines conduct anti-submarine and anti-surface warfare, intelligence gathering, and Naval Special Warfare support, often working with units like SEAL Teams. They provide Tomahawk strike capability and conduct battlefield preparation. Covert operations include deploying SEAL Delivery Vehicle teams and conducting underwater reconnaissance. Submarines also participate in major exercises like RIMPAC and operate globally in areas such as the South China Sea, the Arctic, and the Persian Gulf.

Notable incidents and vessels

The service has experienced tragedies, including the loss of USS Thresher (SSN-593) in 1963, which led to the SUBSAFE program, and the sinking of USS Scorpion (SSN-589) in 1968. The USS Greeneville (SSN-772) collision with the Ehime Maru in 2001 was a significant peacetime disaster. Historic vessels include USS Nautilus (SSN-571), the first nuclear-powered boat and first to complete a submerged transit of the North Pole during Operation Sunshine, and USS Triton (SSN-586), which executed the first submerged circumnavigation during Operation Sandblast. The USS Jimmy Carter (SSN-23), a modified Seawolf-class boat, is configured for special missions.