Puerto Rico: American Revolution and why it matters in 2026. The United States commemorates the 250th anniversary of the Declaration of Independence, marking a quarter of a millennium since the thirteen American colonies declared their separation from Great Britain on July 4, 1776. Throughout the nation, celebrations will highlight the Founding Fathers, the Continental Army, and the birth of a new republic.
Yet, one important chapter of this history is often overlooked. Although Puerto Rico was not one of the Thirteen Colonies, the island played a significant role in the events that ultimately led to American independence. As a Spanish colony, Puerto Rico became part of a broader military strategy that helped weaken British power in North America and the Caribbean.
For genealogists and historians alike, this anniversary presents an opportunity to explore how our Puerto Rican ancestors lived during one of the most transformative periods in world history.
Puerto Rico in 1776
In 1776, Puerto Rico had been under Spanish rule for nearly three centuries. The island was home to approximately 70,000 inhabitants and served as one of Spain’s most important military outposts in the Caribbean.
San Juan was heavily fortified with two of the most impressive military fortifications in the Americas:
- Castillo San Felipe del Morro
- Castillo San Cristóbal
These fortresses were not built merely to defend Puerto Rico—they protected Spain’s vast Caribbean empire, its merchant fleets, and the sea routes that connected Europe with the Americas.
Following military reforms introduced by Field Marshal Alejandro O’Reilly in the 1760s, Puerto Rico’s defenses had been strengthened considerably. The island maintained regular Spanish troops along with local militia companies composed of white residents, free people of color, and other colonial inhabitants. Their mission was clear: defend the island from British attack.
Although no battles related to the American Revolution were fought on Puerto Rican soil in 1776, the island remained on constant military alert.
Spain’s Secret Support for the American Colonies
When the American colonies declared independence in 1776, Spain did not immediately enter the conflict against Great Britain.
Instead, Spanish officials quietly began providing assistance to the American rebels.
Through Spanish-controlled ports such as New Orleans and Havana, enormous quantities of military supplies reached General George Washington’s Continental Army, including:
- Gunpowder
- Muskets
- Uniforms
- Medicine
- Blankets
- Financial assistance
This covert support helped sustain the Continental Army during some of its most difficult years.
Although Puerto Rico was not the primary shipping center for these supplies, the island formed an essential part of Spain’s Caribbean defense system. Its military presence allowed Spain to allocate resources and troops throughout the region while protecting vital shipping lanes.
Spain Enters the War
Everything changed in 1779.
Spain formally declared war on Great Britain, transforming what had begun as a colonial rebellion into a global conflict involving several European powers.
One man would become central to Spain’s military success:
Bernardo de Gálvez.
Bernardo de Gálvez: Spain’s Forgotten Revolutionary Hero
Born in Málaga, Spain, Bernardo de Gálvez served as Governor of Spanish Louisiana beginning in 1777.
Even before Spain officially entered the war, Gálvez quietly aided the American cause by allowing military supplies to pass through New Orleans to the Continental Army.
After Spain declared war, Gálvez launched a brilliant military campaign against British forces along the Gulf Coast.
Between 1779 and 1781, his army captured:
- Baton Rouge
- Natchez
- Mobile
- Pensacola
His victory at Pensacola in 1781 effectively ended British control of West Florida and prevented British reinforcements from reaching the southern colonies.
Many historians believe these victories significantly contributed to the eventual American victory at Yorktown later that same year.
For his extraordinary leadership, King Carlos III granted Gálvez the rare privilege of adding the words “Yo Solo” (“I Alone”) to his family coat of arms after he personally led his ship into Pensacola Harbor despite intense British artillery fire.
In recognition of his contributions to American independence, the United States Congress granted Bernardo de Gálvez Honorary U.S. Citizenship in 2014—an honor bestowed upon only a handful of individuals in American history.
Did Puerto Ricans Serve?
One of the most frequently asked questions is whether Puerto Ricans actually fought during the American Revolution.
The answer is yes—but not under the American flag.
Puerto Rico was a Spanish colony, and its inhabitants served as soldiers of the Spanish Crown.
The island maintained local militia units and the Regimiento Fijo de Puerto Rico, a permanent infantry regiment responsible for defending Puerto Rico and supporting Spanish military operations throughout the Caribbean.
When Spain entered the war, Puerto Rican soldiers joined military expeditions serving alongside forces commanded by Bernardo de Gálvez.
Although historians have not yet identified a complete roster of these soldiers, surviving Spanish military records indicate that men from Puerto Rico participated in campaigns against the British in Louisiana, Mobile, and Pensacola.
Many of these records remain preserved in Spanish archives and continue to be studied by historians and genealogists today.
Puerto Rico’s Strategic Importance
Even for those Puerto Rican soldiers who never left the island, their service was essential.
By defending Puerto Rico, they allowed Spain to deploy additional troops and resources elsewhere in the Caribbean and Gulf of Mexico.
The island also supplied:
- Food
- Livestock
- Timber
- Military provisions
- Caribbean logistical support
Without secure Spanish bases such as Puerto Rico, Havana, and New Orleans, Spain’s military campaign against Great Britain would have been far more difficult.
What This Means for Genealogists
The 250th anniversary offers genealogists a unique opportunity to ask an important question:
Where were our Puerto Rican ancestors during the American Revolution?
Many families can trace ancestors who were living in Puerto Rico during this period. They may have served in local militia companies, worked in support of the Spanish military, supplied agricultural products, or lived in communities preparing for possible British invasion.
While most Americans celebrate the Revolutionary War through the stories of Washington, Jefferson, and the Continental Army, Puerto Rican genealogy reminds us that history is often interconnected.
Our ancestors may not have signed the Declaration of Independence, but they lived through the same historic era, served another empire, and contributed—directly or indirectly—to one of the defining moments in world history.
A Legacy Worth Remembering
The story of the American Revolution cannot be told solely from the perspective of the Thirteen Colonies.
It is also the story of Spain, France, Cuba, Louisiana, and Puerto Rico—whose people, soldiers, resources, and strategic locations helped shape the outcome of the war.
As we commemorate America’s 250th anniversary, we should also recognize the thousands of Puerto Rican men and women whose lives unfolded during this remarkable period. Their contributions, though often absent from traditional history books, remain an important part of our shared heritage.
For genealogists, every record discovered, every militia roster examined, and every family story preserved helps ensure that these forgotten connections are not lost to history.
Sources
- U.S. National Park Service. Bernardo de Gálvez and the American Revolution.
- American Battlefield Trust. Bernardo de Gálvez: Spain’s Hero of the American Revolution.
- Archivo General de Indias (Seville, Spain).
- Archivo General de Puerto Rico (San Juan, Puerto Rico).
- Kuethe, Allan J. Puerto Rico in the Eighteenth Century: Military Reform and Society.
- Cubbison, Douglas R. The American Revolution in the Spanish Borderlands.
