Which battle is considered the last major battle of the American Revolution?

The Siege of Yorktown is recognized as the last major battle of the American Revolution because it effectively marked the end of large-scale hostilities between Great Britain and the American colonies. In 1781, American and French forces, led by General George Washington and General Rochambeau, surrounded the British army under General Cornwallis at Yorktown, Virginia. The successful siege lasted from September 28 to October 19, culminating in Cornwallis's surrender, which significantly weakened British military presence and morale.

This victory demonstrated the effectiveness of the colonial forces and their allies, leading to negotiations that ultimately resulted in the Treaty of Paris in 1783, formally recognizing American independence. The other battles listed, such as the Battles of Saratoga, Bunker Hill, and Lexington, were crucial in the early or mid-stages of the war, but none marked the final conclusion of major fighting in the same decisive manner as the Siege of Yorktown.