American Revolution refers to the political and armed conflict between 13 British colonies in North America and their parent country, Great Britain, between 1775 and 1783. The colonies formed self-governing independent states, which later united to form one nation, breaking away from the British rule in 1776 with the Declaration of Independence. The American Revolutionary War ended with American victory in October 1781, and Britain recognized the United States' independence and sovereignty in 1783. The revolution led to drafting of the Constitution of the United States in 1787 and the United States Bill of Rights in 1789, establishing a republican form of government, in which power resided with the people.