United States

When British Gen. Thomas Gage sent a force from Boston to destroy American rebel military stores at Concord, Massachusetts, fighting broke out between militia and British troops at Lexington and Concord on April 19, 1775. Reports of these clashes reached the Second Continental Congress, which met in Philadelphia in May. Although most colonial leaders still hoped for reconciliation with Britain, the news stirred the delegates to more radical action. Steps were taken to put the continent on a war footing. While a further appeal was addressed to the British people (mainly at Dickinson’s insistence), the Congress raised an army, adopted a Declaration of the Causes and Necessity of Taking Up Arms, and appointed committees to deal with domestic supply and foreign affairs. In August 1775 the king declared a state of rebellion; by the end of the year, all colonial trade had been banned. Even yet, Gen. George Washington, commander of the Continental Army, still referred to the British troops as “ministerial” forces, indicating a civil war, not a war looking to separate national identity.

A statue in Lexington, Mass., honouring the minutemen who fought against the British in 1775.© Americanspirit/Dreamstime.com

Then in January 1776 the publication of Thomas Paine’s irreverent pamphlet Common Sense abruptly shattered this hopeful complacency and put independence on the agenda. Paine’s eloquent, direct language spoke people’s unspoken thoughts; no pamphlet had ever made such an impact on colonial opinion. While the Congress negotiated urgently, but secretly, for a French alliance, power struggles erupted in provinces where conservatives still hoped for relief. The only form relief could take, however, was British concessions; as public opinion hardened in Britain, where a general election in November 1774 had returned a strong majority for Lord North, the hope for reconciliation faded. In the face of British intransigence, men committed to their definition of colonial rights were left with no alternative, and the substantial portion of colonists—about one-third according to John Adams, although contemporary historians believe the number to have been much smaller—who preferred loyalty to the crown, with all its disadvantages, were localized and outflanked. Where the British armies massed, they found plenty of loyalist support, but, when they moved on, they left the loyalists feeble and exposed.

Title page from Thomas Paine's pamphlet Common Sense, 1776.Library of Congress, Washington, D.C.

The most dramatic internal revolution occurred in Pennsylvania, where a strong radical party, based mainly in Philadelphia but with allies in the country, seized power in the course of the controversy over independence itself. Opinion for independence swept the colonies in the spring of 1776. The Congress recommended that colonies form their own governments and assigned a committee to draft a declaration of independence.

This document, written by Thomas Jefferson but revised in committee, consisted of two parts. The preamble set the claims of the United States on a basis of natural rights, with a dedication to the principle of equality; the second was a long list of grievances against the crown—not Parliament now, since the argument was that Parliament had no lawful power in the colonies. On July 2 the Congress itself voted for independence; on July 4 it adopted the Declaration of Independence. (See also Founding Fathers.)

Trumbull, John: Declaration of IndependenceDeclaration of Independence, oil on canvas by John Trumbull, 1818; in the U.S. Capitol Rotunda, Washington, D.C.Architect of the Capitol J.R. Pole

The American Revolutionary War

Cow representing English commerce being milked and dehorned by France, Spain, Holland, and the United States while the British lion sleeps, during the American Revolutionary War.Library of Congress, Washington, D.C.

The American Revolutionary War thus began as a civil conflict within the British Empire over colonial affairs, but, with America being joined by France in 1778 and Spain in 1779, it became an international war. (The Netherlands, which was engaged in its own war with Britain, provided financial support to the Americans as well as official recognition of their independence.) On land the Americans assembled both state militias and the Continental (national) Army, with approximately 20,000 men, mostly farmers, fighting at any given time. By contrast, the British army was composed of reliable and well-trained professionals, numbering about 42,000 regulars, supplemented by about 30,000 German (Hessian) mercenaries.