Final answer:
In 1780, French warships arrived at Rhode Island under command of Rochambeau and met with Washington to plan an attack on British General Clinton. Washington changed his strategy and kept it secret, marching south with Rochambeau to join Lafayette and Wayne, trapping British General Cornwallis in Yorktown on a peninsula. The siege led to Cornwallis's surrender.
Step-by-step explanation:
In 1780, events took place that changed the direction of the American Revolution. In July, French warships arrived. They appeared off of the city of Newport in Rhode Island. They were led by the French commander Comte de Rochambeau.
They met up with the leader of the Continental Army, General Washington, north of New York City. They awaited the arrival of another fleet of French ships. When these reinforcements came, the two commanders planned to attack the British army base, which was under the control of General Clinton.
In 1781, General Washington sent Anthony Wayne and Marquis de Lafayette down to help in the Southern fight. Soon, Washington learned that the second French fleet would arrive much farther south than planned. He decided to change his plan of attack, or strategy. He kept this plan a secret in order to surprise the enemy. Washington and Rochambeau marched out of the state of New York south toward Virginia.
Lafayette and Wayne had British General Cornwallis trapped there in the city of Yorktown. The British leader could not escape because the city was on a peninsula, a piece of land surrounded on three sides by water. His escape by ocean was stopped by the second French fleet, which was stationed in Chesapeake Bay.
The British were trapped. The Americans and French began blocking the movement of people and goods, which is known as a siege. Soon after, they began an attack on Yorktown. Cornwallis could see his position was hopeless, and soon surrendered.