The Revolutionary War or the American Revolution (War of Independence) began in 1775. The British Empire and the American colonies had been at odds for approximately a decade over political power. The American colonies felt they had the right to govern themselves whereas the British Empire wanted to continue to exercise their political power over these colonies as part of their empire. In 1775 The British Empire declared Massachusetts to be in rebellion and sent British soldiers to Boston to control the rebels. After this action war quickly broke out as the American Colonies fought for their freedom and the British Empire fought to retain control.
The American Colonies joined together to form the first congress and a continental army. Delegates from the colonies formed the first Continental Congress they directed the war effort and voted to organize an army and a navy. George Washington, a wealthy Virginia landowner and former military officer, was appointed commander in chief of the Continental Army. On July 4, 1776, the Congress adopted the Declaration of Independence, in which the colonies declared their freedom from British rule. The war continued as the British Empire tried to regain control. Other countries such as France stepped in to assist the American Colonies in their bid to become an independent nation. After a humiliating defeat in Yorktown in 1781 the British Empire conceded and the Treaty of Paris was signed in 1783 recognizing the new nation The United States of America. The last British troops left New York City on November 25, 1783.