Naval Station Norfolk — the largest naval base in the world, and its shadow over San Diego.

On any given morning, standing at the foot of Hampton Boulevard in Norfolk, Virginia, the view across the water is unlike any other on earth. Aircraft carriers line the piers in columns, their flight decks rising four stories above the waterline, their hulls so long that a single ship spans a city block. Naval Station Norfolk encompasses 4,393 acres across Sewell's Point, accommodating more than seventy ships and 130 aircraft at any given moment, with a permanent population of sailors, officers, and civilians approaching 100,000. It is not merely the largest naval base in the United States. It is the largest naval base in the world, and it has been the center of American sea power for more than a century.

The land came to the Navy by a kind of elegant accident. In 1907, the Jamestown Tercentennial Exposition—commemorating three centuries since England's first permanent American settlement—was staged on the sandy peninsula of Sewell's Point, jutting into the southern reach of Chesapeake Bay. President Theodore Roosevelt reviewed the assembled Great White Fleet from these shores in April of that year: sixteen battleships in a gleaming arc, the most powerful naval demonstration the Western Hemisphere had ever witnessed, their white hulls and buff stacks reflected in the gray water of Hampton Roads. When the exposition closed and its fairgrounds fell quiet, the Navy recognized what it held — a deep-water anchorage within easy reach of the Atlantic, sheltered from open ocean, commanding the approaches to the Elizabeth River and the historic yard at Portsmouth. When Congress declared war on Germany in April 1917, the service moved fast. By July 4 of that year, Naval Operating Base Norfolk had been formally established, its first barracks and piers rising from the old exposition grounds in a matter of weeks, hammered together by a workforce that eventually topped 12,000 construction laborers working in continuous shifts.

But the deeper history of Hampton Roads runs far older than 1917. On the morning of March 8, 1862, CSS Virginia — the ironclad rebuilt from the burned hull of USS Merrimack in the Gosport Navy Yard just across the Elizabeth River — steamed into the Union blockading squadron and rendered every wooden warship in the world obsolete within a single afternoon. She rammed and sank USS Cumberland, burned USS Congress with incendiary shells, and drove USS Minnesota aground before retiring for the night. The following morning, USS Monitor arrived and the two ironclads circled each other for four hours, neither able to penetrate the other's armor, in the first battle between steam-powered iron warships in history. The engagement settled nothing tactically — Virginia was scuttled two months later when Confederate forces abandoned Norfolk — but it changed naval architecture forever. The Gosport yard, rechristened Norfolk Naval Shipyard after the war though it sits technically in Portsmouth, would go on to build and refit American warships for another 160 years, making it the oldest continuously operating naval industrial facility on the Atlantic coast.

When the United States entered the Second World War, Norfolk became the operational brain of the Atlantic struggle. Admiral Royal E. Ingersoll, Commander in Chief, U.S. Atlantic Fleet, directed convoy escort and antisubmarine warfare from his headquarters at NOB Norfolk while German U-boats prosecuted Operation Drumbeat within sight of the Virginia coastline — what submariners called the "Second Happy Time," when merchant ships burned against the lights of cities that refused to implement blackouts. Norfolk Naval Shipyard ran around the clock in three-shift rotations; in the war's first year alone it processed hundreds of combatants requiring repair or conversion, and over the full span of the conflict it overhauled vessels ranging from destroyer escorts to the battleship Iowa herself. Iowa transited through Norfolk waters in November 1943 carrying President Franklin D. Roosevelt across the Atlantic for the Tehran Conference, her hull riding low and her watertight doors dogged against the torpedo threat. By 1945, NOB Norfolk had grown to more than 430 buildings and housed over 100,000 personnel — a city built in under a decade, dedicated entirely to war.

The Cold War brought a new scale of ambition to Sewell's Point. On October 1, 1955, USS Forrestal was commissioned — the first of what the Navy called "supercarriers," 1,039 feet long, displacing 78,000 tons fully loaded, with an angled flight deck that allowed jet aircraft to launch and recover simultaneously. Forrestal established the template for every American carrier built afterward: the island offset to starboard, the four catapults, the massive below-deck fuel and ordnance magazines. Six years later, on November 25, 1961, USS Enterprise was commissioned at Newport News Shipbuilding — thirty miles up the James River from Norfolk — the world's first nuclear-powered aircraft carrier, 1,123 feet in length, driven by eight Westinghouse A2W reactors turning four shafts, capable of exceeding thirty knots and sustaining that speed for years without a drop of oil. Enterprise made her home at Norfolk and spent her career projecting force across the Atlantic and Mediterranean, carrying more than 5,000 sailors and airmen wherever the Cold War's fault lines ran hottest — Cuba in 1962, the Strait of Hormuz in 1988, the Adriatic in 1999.

The modern surface fleet that calls Norfolk home is staggering in its concentration of power. The station today hosts all or part of five carrier strike groups, dozens of destroyers and cruisers, amphibious assault ships, and the headquarters of U.S. Fleet Forces Command, which coordinates every ship in the Atlantic, Mediterranean, and Indian Ocean. In July 2017, USS Gerald R. Ford — lead ship of a new carrier class — was commissioned at Naval Station Norfolk, 1,106 feet long, displacing more than 100,000 tons fully loaded, the most expensive warship ever constructed. Ford features the Electromagnetic Aircraft Launch System replacing steam catapults that had flung aircraft skyward since Forrestal's day, an Advanced Arresting Gear system, and a dual-band radar suite of unmatched resolution. She cost approximately $13 billion and took thirteen years to build — and she was born, as every supercarrier before her, within sight of the waters where Monitor and Virginia first circled each other in 1862.

What Norfolk builds, San Diego inherits. Naval Base San Diego — spread across thirteen piers along the silver arc of San Diego Bay — is the largest naval complex on the West Coast, home to the Pacific Fleet's surface combatants and the operational hub for sea lanes stretching from Point Loma to Japan, Australia, and the South China Sea. Carrier strike groups commissioned at Norfolk shake down in the Atlantic and eventually transfer to San Diego or Bremerton, repositioned as Pacific strategic weight demands. USS Carl Vinson, USS Abraham Lincoln, and USS Theodore Roosevelt have all cycled through this Atlantic-to-Pacific pipeline, their crews carrying doctrines and tactics honed in Norfolk's waters into the broader, deeper expanse of the Pacific. The two bases are, in this sense, a single organism — Norfolk the forge, San Diego the blade. U.S. Pacific Fleet draws its material strength from the industrial capacity concentrated in Hampton Roads; without Norfolk's yards and piers, San Diego would be a harbor without a fleet.

The sailors who board JADA in San Diego Bay sail in the shadow of this force. Naval Air Station North Island rises at the northern tip of Coronado, just across the channel, and on clear mornings the flight decks of carrier strike groups are visible from the bay, their island superstructures emerging above the low hills of Point Loma like steel cities at anchor. Every ship in that anchorage traces a line of descent back to Sewell's Point — to the piers where Roosevelt reviewed the Great White Fleet in 1907 and where the nuclear supercarriers of the twenty-first century now wait for their orders. Norfolk and San Diego are the twin capitals of American sea power: one facing the Atlantic, one facing the Pacific, between them sustaining the chain of steel and jet fuel and trained human will that has kept the ocean commons open for eighty years. The history of one is inseparable from the other, and both are written, in part, in the long wakes that cross and recross the waters of San Diego Bay.