Memory Key Battles of the RevolutionVersion en ligne Significance of key battles of the American Revolution par Daniel Yoder American and French forces trap the British Army forcing a surrender and an end to the war. Lexington & Concord Colonial forces harass British troops on their march back to Boston. This kicks off the American Revolution Bunker Hill Long Island Saratoga Yorktown American victory that convinces the French to join the war effort. Inspired the Second Continental Congress to write the Olive Branch Petition. Gen. Washington is able to escape and avoid total destruction, teaching him he can win the war simply by not losing it.