American Revolution: A fleet of American boats on Lake Champlain is defeated by the Royal Navy, but delays the British advance until 1777.

The American Revolution (1765–1783) was a colonial rebellion and war of independence in which the Thirteen Colonies broke from British rule to form the United States of America. The revolutionary era reached its zenith with the American Revolutionary War, which commenced on April 19, 1775, with the Battles of Lexington and Concord. The leaders of the American Revolution were colonial separatists who, as British subjects, initially sought greater autonomy. However, they came to embrace the cause of full independence and the necessity of prevailing in the Revolutionary War to obtain it. The Second Continental Congress, which represented the colonies and convened in the present-day Independence Hall in Philadelphia, established the Continental Army and appointed George Washington as its commander-in-chief in June 1775. The following year, the Congress unanimously adopted the Declaration of Independence, which served to inspire, formalize, and escalate the war. Throughout the majority of the eight-year war, the outcome appeared to be uncertain. However, in 1781, a decisive victory by Washington and the Continental Army in the Siege of Yorktown led King George III and the British to negotiate the cessation of colonial rule and the acknowledgment of American independence. This was formalized in the Treaty of Paris in 1783, resulting in the establishment of the United States of America as a sovereign nation.

The Battle of Valcour Island, also known as the Battle of Valcour Bay, was a naval engagement that took place on October 11, 1776, on Lake Champlain. The main action took place in Valcour Bay, a narrow strait between the New York mainland and Valcour Island. The battle is generally regarded as one of the first naval battles of the American Revolutionary War, and one of the first fought by the Continental Navy. Most of the ships in the American fleet under the command of Benedict Arnold were captured or destroyed by a British force under the overall direction of General Guy Carleton. However, the American defense of Lake Champlain stalled British plans to reach the upper Hudson River valley.