Castine

The Penobscot Disaster: Castine, Maine, and the Worst American Naval Defeat of the Revolution

On the rocky, wind-scoured peninsula that juts into Penobscot Bay, the small town of Castine, Maine, holds a Revolutionary War story that most Americans have never heard — and that the young republic spent decades trying to forget. Here, in the summer of 1779, the largest American naval expedition of the entire war ended not in triumph but in catastrophic, self-inflicted destruction. The Penobscot Expedition, as it came to be known, resulted in the loss of an entire fleet, the court-martial of two of its commanders, and a strategic humiliation so complete that Britain wielded the memory of it at the Paris peace negotiations three years later. What happened at the place then called Bagaduce — and why it went so terribly wrong — is one of the Revolution's most dramatic and instructive episodes.

To understand why this remote corner of the Maine coast mattered in 1779, one must first understand what the British were doing there. In June of that year, Brigadier General Francis McLean sailed from Halifax with roughly 700 troops from the 74th and 82nd Regiments of Foot and a small naval escort of three sloops-of-war. His orders were to establish a permanent British post on the Penobscot peninsula, a position that would serve multiple strategic purposes: it would anchor British claims to the territory between the Penobscot and St. Croix rivers, which London hoped to carve off as a loyalist colony called "New Ireland"; it would provide a base for Royal Navy operations along the New England coast; and it would secure access to the region's invaluable timber, masts, and naval stores — resources critical to maintaining British sea power. McLean's forces landed at Bagaduce on June 17, 1779, and immediately began constructing a fortification they named Fort George on the heights overlooking the harbor. The fort was still unfinished, its walls only partially raised, when word of the British occupation reached Boston and set in motion the most ambitious American military operation the Commonwealth of Massachusetts had ever attempted.

The response was swift and, by the standards of the war, enormous. Massachusetts organized and financed the expedition almost entirely on its own authority, without waiting for Continental Congress approval or coordination with George Washington's main army. By mid-July, the state had assembled a fleet of approximately forty-four vessels: nineteen warships — including the Continental Navy frigate Warren, the expedition's flagship — and roughly two dozen transports and supply ships carrying nearly 1,000 militia infantry under the command of Brigadier General Solomon Lovell, along with an artillery train led by Lieutenant Colonel Paul Revere, already famous for his midnight ride four years earlier but serving here in a far less celebrated capacity. Command of the naval forces fell to Commodore Dudley Saltonstall of Connecticut, a Continental Navy officer whose appointment would prove fatally consequential. The fleet also carried approximately 300 Marines, making the landing force a combined operation of significant scale. In total, some 2,000 to 3,000 Americans sailed for Penobscot Bay — a force that, on paper, outnumbered the British defenders by a margin of roughly three to one.

The American fleet arrived at Bagaduce on July 25, 1779, and the first days of the operation suggested that success was within reach. On July 28, in one of the expedition's few genuinely impressive military actions, American Marines under Captain John Welsh stormed the steep, wooded bluffs on the western side of the peninsula, climbing nearly two hundred feet under fire to dislodge British defenders and seize the high ground above the harbor. It was a feat of courage and tactical aggression that momentarily placed the Americans in a commanding position. With the heights taken, Lovell's militia could look down on the half-finished walls of Fort George, and the British garrison, outnumbered and with incomplete defenses, was in a genuinely precarious situation. McLean himself later admitted that had the Americans pressed their attack, he would have had little choice but to surrender.

But the attack was not pressed, and what followed instead were three agonizing weeks of indecision, recrimination, and command paralysis that turned a promising operation into a debacle. The fundamental problem was the relationship — or rather, the absence of any functional relationship — between Saltonstall and Lovell. Lovell wanted the fleet to force its way into the harbor and engage the three British sloops directly, clearing the way for a coordinated land-sea assault on Fort George. Saltonstall refused, insisting that the land forces must first reduce the fort so that his ships would not be exposed to fire from its guns. Each commander waited for the other to act first. Councils of war were held repeatedly, producing nothing but mutual frustration. Saltonstall, by most contemporary accounts, was cold, uncooperative, and seemingly paralyzed by caution; Lovell, though willing to fight, lacked the authority or the force to take the fort without naval support. Paul Revere, commanding the artillery, added to the dysfunction — witnesses later testified that he was insubordinate, uncooperative with other officers, and at times more concerned with his personal comfort than with the demands of the siege. Day after day, the Americans sat on their positions while McLean's garrison worked furiously to strengthen Fort George's defenses, turning what had been a vulnerable, half-built earthwork into an increasingly formidable position.

The consequences of this delay arrived on August 13, 1779, in the form of a British relief squadron under Commodore George Collier. Collier had sailed from New York with a powerful force — the 64-gun ship of the line Raisonable, several frigates, and supporting vessels — and his appearance in Penobscot Bay instantly transformed the strategic situation. The Americans, who had spent nearly three weeks failing to take a half-finished fort defended by 700 men, now faced a professional naval force that vastly outgunned their collection of converted merchantmen, privateers, and the lone frigate Warren. Panic swept the fleet. Rather than attempting a fighting withdrawal or even a coordinated retreat, the American naval force simply disintegrated. Saltonstall ordered a retreat up the Penobscot River, but it was no retreat — it was a rout. As Collier's ships pursued, American captains ran their vessels ashore and set them ablaze to prevent capture. One by one, the ships of the Penobscot Expedition burned along the riverbanks. Crews and soldiers scrambled into the Maine wilderness, many without food, weapons, or any clear idea of where they were. Some took weeks to straggle back to settlements along the coast. Not a single American warship survived. The entire fleet — every vessel Massachusetts had committed to the expedition — was destroyed, most of them by the hands of their own crews. It was the worst naval disaster in American history, a record it would hold until Pearl Harbor in 1941.

The aftermath was bitter and prolonged. Massachusetts, which had financed the expedition, was left with staggering debts that took decades to resolve — the state did not receive full reimbursement from the federal government until 1793. The political and military recriminations were savage. Commodore Saltonstall was court-martialed, found guilty of failing to properly engage the enemy, and dismissed from the Continental Navy in disgrace. Paul Revere was also subjected to a court-martial for his conduct during the expedition, though his trial did not take place until 1782. He was ultimately acquitted, but the charges — disobedience of orders, unsoldierly behavior, and neglect of duty — cast a shadow over his reputation for years and represented a chapter of his life that the Longfellow poem would conveniently omit. General Lovell, though largely spared official censure, never received another significant command.

The British, meanwhile, remained at Castine. Fort George stood as a functioning British outpost for the remainder of the war, a tangible symbol of Crown authority on American soil. When negotiations began in Paris in 1782, British diplomats used their continued possession of Bagaduce and the Penobscot region as leverage, arguing for a boundary between the United States and British North America that would have placed much of what is now eastern Maine under permanent British control. The American negotiators — John Adams, Benjamin Franklin, and John Jay — ultimately succeeded in pushing the boundary to the St. Croix River, but the fact that Castine featured in the peace negotiations at all testifies to its strategic significance. Britain did not evacuate Fort George until 1784, well after the Treaty of Paris was signed, making it one of the last British military positions on American soil.

What makes Castine distinctive in the broader story of the American Revolution is precisely its discomfort. This is not a place of uncomplicated patriotic triumph. It is a place where ambition outran competence, where divided command produced paralysis, where political urgency led to military disaster, and where the human costs of failure were borne by ordinary soldiers and sailors left to find their way home through an unforgiving wilderness. The Penobscot Expedition reveals the Revolution not as an inevitable march toward independence but as a contingent, often messy struggle in which American forces were entirely capable of defeating themselves.

Modern visitors to Castine can still walk the grounds of Fort George, where earthwork remains are visible and interpretive markers tell the story of the siege. The town itself, perched on its peninsula with sweeping views of the bay, retains a sense of its geographic logic — standing there, one immediately understands why both the British and the Americans saw it as a position worth fighting for. For students and teachers, Castine offers something rare in Revolutionary War education: a case study in failure, in the dangers of unclear command, in the gap between political ambition and military reality. In an era when the Revolution is too often reduced to a highlight reel of victories and heroes, Castine insists on a harder, more honest reckoning with the full cost and complexity of the war that made the nation.