Major Battles of the Revolutionary War: 1775-1783 Guide

The major battles of the Revolutionary War began with the fighting at Lexington and Concord in April 1775 and effectively ended with the British surrender at Yorktown in October 1781, though the war did not formally conclude until the Treaty of Paris in 1783. The most decisive engagements were Saratoga in 1777 — which brought France into the conflict as an American ally — and Yorktown, where Lord Cornwallis surrendered an entire British army. Between those bookends, dozens of battles shaped the outcome, from the siege of Boston to hard-fought clashes across the southern colonies.

Early Battles: 1775-1776

The war opened on April 19, 1775, when British troops marched from Boston toward Concord to seize colonial military supplies. The first shots were fired at Lexington, and the running fight back to Boston became known as the Battles of Lexington and Concord. Colonial militiamen inflicted heavy casualties on the retreating redcoats, and the fighting signaled that armed conflict had begun.

Bunker Hill and the Siege of Boston

Two months later, on June 17, 1775, American forces occupied Breed’s Hill overlooking Boston. In the Battle of Bunker Hill (named for the adjacent hill), colonial troops repelled two British assaults before running out of ammunition and withdrawing. The British won the ground but suffered more than 1,000 casualties, including many officers — a costly victory that showed the Americans could stand up to professional soldiers.

Washington arrived in Cambridge in July 1775 to take command of the colonial army, and the Siege of Boston tightened over the following winter. In March 1776, Washington placed cannons captured at Fort Ticonderoga on Dorchester Heights, threatening the British fleet. The British evacuated Boston without a fight, giving the Americans their first major strategic success.

Turning Point: Saratoga

The Battles of Saratoga, fought in September and October 1777 near Saratoga, New York, are widely considered the turning point of the war. British General John Burgoyne led an army south from Canada, intending to cut New England off from the other colonies. Instead, American forces under General Horatio Gates and General Benedict Arnold defeated him in two engagements — at Freeman’s Farm on September 19 and at Bemis Heights on October 7.

Burgoyne surrendered his army of roughly 6,000 men on October 17, 1777. The victory persuaded France to recognize American independence and enter the war openly, providing the money, troops, and naval power that ultimately made Yorktown possible. In the meantime, Washington’s army endured defeats at Brandywine and Germantown and the brutal winter at Valley Forge, but survived to fight on.

Southern Campaign

After 1778, Britain shifted its strategy toward the southern colonies, hoping to rally Loyalist support. The campaign produced some of the war’s bitterest fighting.

Camden and the Tide Turning

In August 1780, British General Charles Cornwallis routed an American army under Horatio Gates at Camden, South Carolina — a low point for the Patriot cause in the South. Congress replaced Gates with Nathanael Greene, who adopted a strategy of wearing down the British without risking a decisive defeat.

Cowpens and Guilford Courthouse

At the Battle of Cowpens in January 1781, American General Daniel Morgan won a stunning tactical victory over Banastre Tarleton’s force, destroying a large part of the British light infantry in the South. Cornwallis pursued Greene to Guilford Courthouse, North Carolina, where in March 1781 he won the field but lost nearly a quarter of his army. That “victory” was so costly that it left Cornwallis unable to hold the Carolinas, and he moved north into Virginia. The U.S. Army Center of Military History maintains detailed accounts of these engagements at history.army.mil.

Final Victory: Yorktown

The Siege of Yorktown unfolded in October 1781 near the Virginia coast. Cornwallis had established a base at Yorktown to await resupply by sea. Washington, coordinating with the French, marched the combined American and French armies south while a French fleet under Admiral de Grasse blocked the Chesapeake Bay, cutting off Cornwallis from the Royal Navy.

The siege opened on September 28, 1781. Under constant artillery fire, the British defenses crumbled, and Cornwallis surrendered on October 19, 1781. Although Britain and the United States technically remained at war until the Treaty of Paris in 1783, Yorktown ended major fighting and convinced the British government to seek peace. The National Park Service preserves the battlefield and interprets the siege at nps.gov, and the Library of Congress holds many of the era’s primary documents at loc.gov.

Naval Battles

Sea power proved crucial to the outcome. France’s entry into the war in 1778 turned a colonial rebellion into a global conflict, forcing Britain to spread its fleet across multiple theaters. The most famous American naval engagement was the Battle of Flamborough Head in September 1779, off the coast of England, where John Paul Jones commanding the Bonhomme Richard defeated HMS Serapis after a savage fight — famously replying “I have not yet begun to fight” when called on to surrender.

Privateers — privately owned armed vessels licensed by Congress or the states to capture enemy merchant ships — played a major role as well. They disrupted British trade and captured hundreds of prizes, straining the Royal Navy and supplying the American war effort. The French fleet’s role at Yorktown showed how decisive sea control could be: without de Grasse’s blockade, Cornwallis might have escaped.

Key Leaders

George Washington commanded the Continental Army throughout the war. His greatest strength was perseverance — keeping an army in the field through repeated defeats, shortages, and winter encampments. He also proved a capable strategist at Yorktown.

Horatio Gates won the crucial victory at Saratoga, though his later defeat at Camden damaged his reputation. Nathanael Greene was arguably Washington’s most able subordinate in the South, using mobility and attrition to undo British gains.

Charles Cornwallis was one of Britain’s most aggressive commanders. He won many battles but exhausted his army in the process, ultimately trapping it at Yorktown. Other notable figures included Benedict Arnold, whose heroism at Saratoga gave way to his infamous betrayal, and Henry Clinton, the British commander-in-chief in America.

Key Takeaways

• The war opened at Lexington and Concord in April 1775 and effectively ended with the British surrender at Yorktown on October 19, 1781; the Treaty of Paris formally concluded it in 1783.
• The Battles of Saratoga in 1777 were the turning point, convincing France to ally openly with the United States.
• The southern campaign (1778-1781) featured Camden, Cowpens, and Guilford Courthouse, where British victories proved too costly to hold.
• Yorktown succeeded because of Franco-American coordination and French naval control of the Chesapeake Bay.
• Naval power and privateering shaped the war’s course, highlighted by John Paul Jones at Flamborough Head.
• Leaders like Washington, Greene, Gates, and Cornwallis defined the conflict’s strategy on both sides.