The British army was an important part of colonial America and contributed to the coming of the Revolution. Although the number of British soldiers in North America was meager in the 17th century, this changed with the creation of a standing army and expansion of the British Empire. The French and Indian War (1754–1763) brought thousands of regular troops to the colonies, and many remained in America after the war ended. Life as a redcoat reflected contemporary society and the soldiers had a tenuous relationship with Indigenous peoples. The army became a flashpoint between Britain and the colonies in the 1760s and, with the Boston Massacre, a cause for independence. During the American Revolutionary War (1775–1783), British soldiers fought in numerous theaters, aided at times by Hessians and Loyalist militias. Despite victories at Charlestown, Long Island, and Philadelphia, the British army was defeated at Yorktown. Following the Revolution, the British army slowly evacuated the United States but remained in Canada and the Caribbean until the 20th century.