The war fought between the British Empire and the Thirteen American Colonies is known as the American Revolutionary War, which lasted from 1775 to 1783. The conflict arose over issues like taxation without representation, and the colonies' desire for greater autonomy. Tensions escalated following events such as the Boston Tea Party and the First Continental Congress. Key battles included Lexington and Concord, Saratoga, and Yorktown, which were pivotal in shifting the momentum in favor of the colonists. The war concluded with the Treaty of Paris in 1783, establishing the United States as an independent nation and laying the groundwork for its democratic governance.