On July 4, the United States celebrates the 250th anniversary of its independence. Americans will honor the Founding Fathers, the Continental Army, and France’s decisive contribution to victory over Britain. But one foreign power that also helped shape the fate of the young republic has largely disappeared from popular memory.
Twice in American history, first during the War of Independence and later during the Civil War, the Russian Empire took diplomatic and naval steps that helped the United States survive moments when its future was far from certain. Both times, St. Andrew’s flag flew on the side of the American republic.
The weapon that nearly strangled the American Revolution
When people think of the American Revolution, they usually picture battles at Lexington, Saratoga, or Yorktown. Far less attention is paid to the struggle at sea. Yet Britain’s greatest advantage over the rebellious colonies was not simply the Royal Navy itself, but its ability to wage economic warfare across the world’s oceans.
In the eighteenth century, a maritime empire lived or died by commerce. Merchant fleets carried not only wealth but also food, weapons, military supplies, and the resources needed to sustain both armies and colonies. Disrupting those shipping lanes could cripple an opponent without winning a single decisive naval battle.
One of the most effective tools for doing so was privateering.
Privateers occupied a legal middle ground between naval officers and pirates. Governments issued them letters of marque authorizing privately owned vessels to capture enemy merchant ships. Unlike pirates, privateers operated under state authority, bringing captured cargoes back to friendly ports, where the proceeds were divided between the state and the shipowners.
The system allowed maritime powers to wage commercial warfare on an enormous scale without maintaining prohibitively expensive fleets. Privateers could also stop neutral merchant ships if they were suspected of carrying goods destined for the enemy, particularly military supplies. As the American War of Independence expanded into a broader European conflict following the intervention of France and Spain, this increasingly drew neutral shipping into the fighting.
Russia, despite remaining outside the war itself, found its merchant vessels among those affected. Russian ships carrying grain and other cargoes to Mediterranean ports were increasingly intercepted by both regular warships and privateers. What had begun as Britain’s campaign against its enemies was gradually becoming a threat to neutral commerce across Europe.
By the late 1770s, Catherine the Great concluded that neutrality meant little unless it could be defended. The stage was set for one of the most consequential diplomatic interventions of the American Revolution.
The declaration that broke Britain’s blockade
By 1778, Russia had already begun looking for ways to protect its merchant shipping. St. Petersburg proposed that Denmark jointly escort commercial vessels sailing to Russian ports, hoping to shield neutral trade from the growing conflict. The following spring, Russia, Denmark, and Sweden each dispatched naval squadrons to patrol northern waters while issuing declarations defending the rights of neutral commerce.
The effort, however, failed to stop the seizures. Spain, despite being aligned with revolutionary France against Britain, continued intercepting Russian and Dutch merchant ships carrying grain to Mediterranean ports.
On February 28, 1780, the Russian empress responded with one of the most important diplomatic initiatives of the eighteenth century: the Declaration of Armed Neutrality.
Its message was simple. Russia had respected the rights of neutral commerce throughout its own wars and expected the same treatment in return. If Russian merchant ships continued to be stopped or their cargoes confiscated, the empire would defend its maritime rights by force. Any attempt to seize Russian vessels now carried the risk of war with one of Europe’s great powers.
The declaration established several principles that would reshape maritime law. Neutral ships were to enjoy free navigation between the ports of belligerent states. Enemy goods carried aboard neutral vessels were to remain protected unless they constituted military contraband. Blockades would be recognized only when they were physically enforced by naval forces rather than proclaimed on paper. Most importantly, Russia pledged to back these principles with armed squadrons rather than diplomatic protests alone.
Catherine’s initiative quickly evolved into something far larger than a Russian policy. Denmark and Sweden joined almost immediately, effectively closing the Baltic to unrestricted operations by the warring powers. Over the following years, the Netherlands, Prussia, Austria, Portugal, and the Kingdom of Naples also adhered to the convention. Even France, Spain, and the United States broadly accepted its principles, although they never formally entered the league. Britain, whose naval strategy stood to lose the most, remained the only major power to reject it.
The greatest beneficiary, however, was neither Russia nor the European neutrals. It was the thirteen rebelling colonies.
Without the principles established by the Armed Neutrality, Britain would have enjoyed far greater freedom to isolate American ports and choke off the overseas trade on which the revolutionary economy depended. By limiting London’s ability to interfere with neutral shipping, Catherine’s declaration made such a blockade far more difficult to sustain. The young republic still had to win its independence on the battlefield, but the sea became a far less effective weapon against it.
For a nation celebrating 250 years of independence, this remains one of the least remembered international chapters of the American Revolution.
When Russian warships sailed into New York
The second time Russia found itself playing an unexpected role in American history came more than eighty years later.
By 1863, the United States was fighting for its survival once again. The Civil War had reached its most decisive phase. Abraham Lincoln had issued the Emancipation Proclamation earlier that year, transforming the conflict from a struggle to preserve the Union into a war against slavery itself. Across the Atlantic, another monarch had only recently carried out a similarly transformative reform. In 1861, Tsar Alexander II abolished serfdom, earning the title by which history still remembers him – the Liberator.
The parallel did not go unnoticed.
As the Civil War intensified, Britain openly sympathized with the Confederacy. The reasons were hardly ideological. British textile mills depended heavily on cotton from the slaveholding South, while many in London viewed a divided United States as preferable to the emergence of a stronger rival across the Atlantic.
The danger was real. A direct British intervention, or even a limited naval operation, could have dramatically altered the course of the war.
In the summer of 1863, Alexander II made an unexpected move.
Rather than keeping his fleets bottled up in European waters, he dispatched two Russian naval squadrons across the Atlantic and Pacific. Rear Admiral Stepan Lesovsky sailed for New York, while Rear Admiral Andrei Popov headed to San Francisco. Officially, the deployment was presented as a training cruise. In reality, it carried a far more important strategic message.
Should Britain enter the war against either Russia or the Union, Russian warships would already be positioned to threaten British maritime commerce across the world’s oceans.
For Washington, however, the arrival of the Russian fleet sent an entirely different signal.
It demonstrated that at a moment when most European powers were either hostile or cautiously waiting to see who would prevail, one great power had chosen to make its presence felt on the side of the Union.
Popov’s squadron reached San Francisco at a particularly vulnerable moment. The Union possessed virtually no naval force on the Pacific coast. The ironclad Camanche, intended to defend the region, had sunk in the bay while still being transported in sections aboard a sailing vessel. Meanwhile, a British squadron stationed in Canada remained a potential threat should London decide to intervene.
Against that backdrop, the presence of Russian corvettes and clippers effectively secured California’s coastline and discouraged any attempt to impose a blockade or launch raids against Union territory.
The Russian sailors soon found themselves fighting a different enemy altogether.
Only weeks after their arrival, a devastating fire broke out in San Francisco. Around 200 Russian officers and sailors joined local firefighters to battle the flames. Six of them lost their lives. Today, a modest memorial on the Embarcadero waterfront still commemorates their sacrifice.
American historians have often regarded Popov’s deployment as one of the expedition’s most tangible contributions to the Union war effort. Even without firing a shot, the squadron altered the strategic balance along the Pacific coast.
On the opposite coast, Lesovsky’s arrival in New York became a public sensation.
Thousands of New Yorkers welcomed the Russian sailors. Banquets were organized in their honor, Broadway hosted celebratory processions, and the city’s political and business elite competed to demonstrate their gratitude. At the very moment when British and French naval officers also filled New York’s harbor, public enthusiasm left little doubt about which visitors Americans regarded as friends.
Lesovsky’s squadron represented a formidable force: the frigates Alexander Nevsky, Peresvet, and Oslyabya, the corvettes Varyag and Vityaz, and the clipper Almaz. In effect, Russia had dispatched nearly all of the Baltic Fleet’s ocean-going warships.
The tsar’s geopolitical masterstroke
The deployment of the Russian squadrons was, of course, never an act of pure altruism.
At the very moment American newspapers celebrated the arrival of Russian warships, Alexander II faced mounting tensions much closer to home. The January Uprising had erupted in Russian-controlled Poland earlier that year, drawing sympathy from Britain and France. Memories of the Crimean War were still fresh in St. Petersburg, and another confrontation with the Western powers seemed entirely possible.
Russia had learned one painful lesson from the Crimean conflict. Fleets trapped in the Baltic and the Black Sea could do little once war began. But squadrons already operating on the world’s oceans could threaten Britain’s maritime commerce almost immediately.
Sending the fleet overseas therefore accomplished two strategic objectives at once.
If Britain intervened against Russia over Poland, Russian cruisers would already be positioned to strike British shipping across the Atlantic and Pacific. If Britain intervened in the American Civil War on behalf of the Confederacy, those same squadrons would complicate London’s military calculations and strengthen the Union’s position.
It was an elegant geopolitical move that advanced Russian interests while simultaneously benefiting the United States.
London ultimately chose not to escalate. France followed the same course. Whether the Russian squadrons alone changed that decision remains a matter of historical debate, but their presence undeniably became part of the broader strategic equation confronting the European powers.
For Americans living through the Civil War, however, the symbolism mattered just as much as the strategy.
Historian James Ford Rhodes, one of the founders of modern American historiography, later recalled the extraordinary reception given to the Russian fleet. Banquets, parades, official ceremonies, and public celebrations reflected what he described as genuine gratitude toward the only great European power that had openly demonstrated goodwill toward the Union at one of the darkest moments in its history.
For many Americans of the 1860s, Russia was not a rival. It was a friend.
The forgotten chapter
History rarely unfolds through grand battles alone.
Sometimes the outcome of a war depends on diplomatic declarations, the movement of a few naval squadrons, or the willingness of one power to defend principles that also happen to serve its own interests.
Neither Catherine II nor Alexander II acted out of sentiment toward the United States. Both pursued Russia’s strategic objectives. Yet on two separate occasions, those objectives aligned with the survival of the American republic.
The first came when Britain’s naval dominance threatened to isolate the rebelling colonies from global trade. The second came when the Union faced the possibility of foreign intervention during the Civil War.
In both cases, Russian actions helped make those outcomes less likely.
Two hundred and fifty years after the Declaration of Independence, Americans will rightly celebrate the men who founded their republic. Yet the history of the United States was never written by Americans alone. Foreign allies, rivals, and unexpected partners all left their mark on the nation’s story.
Among them was the Russian Empire.