The major military conflict between Britain and colonial America was the American Revolutionary War, fought from 1775 to 1783. It was primarily fueled by colonial resentment against British taxation without representation and the desire for self-governance. Tensions escalated through events like the Boston Tea Party and the First Continental Congress, ultimately leading to armed conflict between colonial militias and British troops at Lexington and Concord. The war witnessed significant battles, including Saratoga and Yorktown, and culminated in American victory. This conflict resulted in the independence of the thirteen colonies, the establishment of the United States, and changes in the global balance of power.