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The American Revolutionary War , also referred to as the American War of Independence and the Revolutionary War in the United States, was an armed conflict between Great Britain and thirteen of its North American colonies, which later declared its independence as the United States of America.

American Revolutionary War
Clockwise from top left: Surrender of Lord Cornwallis after the Siege of Yorktown, Battle of Trenton, The Death of General Warren at the Battle of Bunker Hill, Battle of Long Island, Battle of Guilford Court House
Date April 19, 1775 – September 3, 1783
(8 years, 4 months and 15 days)
Ratification effective: May 12, 1784
Location Eastern North America, Caribbean Sea, Indian subcontinent, Central America, Europe, Africa, the Atlantic Ocean, and the Indian Ocean

Peace of Paris


United Colonies
United States
Kingdom of France France

Spain Spain

Native Americans

Kingdom of Great Britain Great Britain

Native Americans

Commanders and leaders

United States George Washington
United States Nathanael Greene
United States Horatio Gates
Esek Hopkins
Kingdom of France Comte de Rochambeau
Kingdom of France Comte de Grasse Surrendered

Kingdom of Great Britain Sir William Howe
Kingdom of Great Britain Thomas Gage
Kingdom of Great Britain Sir Guy Carleton
Kingdom of Great Britain Sir Henry Clinton
Kingdom of Great Britain Lord Cornwallis Surrendered
Kingdom of Great Britain John Burgoyne Surrendered
Kingdom of Great Britain Richard Howe
Wilhelm Knyphausen
Brunswick-Lüneburg Arms.svg Baron Riedesel Surrendered


United States:
40,000 (Average)
5,000 Continental Navy sailors (at height in 1779)
no ships of the line
53 other ships (active at some point during the war)

36,000 French (in America)
63,000 French and Spanish (at Gibraltar)
146 ships of the line (active 1782)

Native Allies: Unknown

Great Britain:
48,000 (average, North America only)
7,500 (at Gibraltar)
94 ships of the line (active 1782)
171,000 Sailors

Loyalist forces:
19,000 (total number that served)

German auxiliaries:
30,000 (total number that served)

Native Allies: 13,000
Casualties and losses

United States:
6,824 killed in battle
25,000–70,000 dead from all causes
Overall casualties up to 50,000
France: 10,000 battle deaths (75% at sea) Spain: 5,000 killed

Netherlands: 500 killed

Great Britain:
4,000 army troops killed in battle (North America only)
27,000 army troops died of disease (North America)
1,243 navy killed in battle, 42,000 deserted, 18,500 died from disease (1776–1780)
At least 51,000 dead from all causes

Germans: 1,800 killed in battle
4,888 deserted
7,774 dead from all causes

The American Revolutionary War (1775–1783), also referred to as the American War of Independence and the Revolutionary War in the United States, was an armed conflict between Great Britain and thirteen of its North American colonies, which later declared its independence as the United States of America.

The war largely had its origins in the resistance of many Americans to certain taxes and Parliamentary acts which they claimed were unjust and illegal. Patriot protests escalated into boycotts, and, on December 16, 1773, they destroyed a shipment of tea in Boston Harbor. The British government retaliated by closing the port of Boston. It then passed measures designed to punish the rebellious colonies. The Patriots responded with the Suffolk Resolves, establishing a shadow government that removed control of the province from the Crown outside of Boston. Twelve colonies formed a Continental Congress to coordinate their resistance, and established committees and conventions that effectively seized power.

British attempts to seize American munitions in April 1775 led to open combat between Crown forces and Patriot militia. Militia forces proceeded to besiege the British forces in Boston, forcing them to evacuate the city in March 1776. The Continental Congress appointed George Washington to take command of the militia. Later, he was appointed as commander-in-chief of the newly formed Continental Army, as well as coordinating state militia units. Concurrent to the Boston campaign, an American attempt to invade Quebec and raise rebellion against the British Crown decisively failed. On July 2, 1776, Congress formally voted for independence, issuing its Declaration on July 4.

Sir William Howe began his counterattack focused on recapturing New York City. Howe outmaneuvered and defeated Washington, leaving American confidence at a low ebb. Washington was able to capture a Hessian force at Trenton, and drive the British out of New Jersey, restoring American confidence. In 1777, the British sent a new army under John Burgoyne, to move south from Canada and isolate the New England colonies. However, instead of assisting Burgoyne, Howe took his army on a separate campaign against the revolutionary capital of Philadelphia. Burgoyne outran his supplies, was surrounded and surrendered in October 1777.

The British defeat at Saratoga had drastic consequences. France and Spain had been covertly providing the colonists with weapons, ammunition, and other supplies since April 1776, and now France formally entered the war in 1778, signing a military alliance that recognized the independence of the United States. Giving up on the North, the British decided to salvage their former colonies in the South. British forces under Charles Cornwallis seized Georgia and South Carolina, capturing an American army at Charleston, South Carolina. The strategy depended upon an uprising of large numbers of armed Loyalists; but too few came forward. In 1779, Spain joined the war as an ally of France under the Pacte de Famille, intending to capture Gibraltar and British colonies in the Caribbean. Britain declared war on the Dutch Republic in 1780.

In 1781, after suffering two decisive defeats at King's Mountain and Cowpens, Cornwallis retreated to Virginia, intending on evacuation. A decisive French naval victory in September deprived the British of an escape route. A joint Franco-American army led by Count Rochambeau and Washington, laid siege to the British forces at Yorktown. With no sign of relief and the situation untenable, Cornwallis surrendered in October, and some 8,000 soldiers were taken prisoner.

Whigs in Britain had long opposed the pro-war Tory majority in Parliament, however, the defeat at Yorktown gave the Whigs the upper hand. In early 1782, they voted to end all offensive operations in North America, but the war against France and Spain continued, with the British decisively defeating both during the Great Siege of Gibraltar. In addition they inflicted several naval defeats upon the French, the most decisive being the Battle of the Saintes in the Caribbean the same year. On September 3, 1783, the combatants signed the Treaty of Paris, ending the war. Britain agreed to recognize the sovereignty of the United States over the territory bounded roughly by what is now Canada to the north, Florida to the south, and the Mississippi River to the west. While French involvement proved decisive for the cause of American independence, they made only minor territorial gains, and were beset with massive financial debts. Spain acquired Britain's Florida colonies and the island of Minorca, but failed in its primary aim of recovering Gibraltar. The Dutch lost on all counts, and were compelled to cede some territory to the British.