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