Final answer:
The Battle of Saratoga was the turning point of the American Revolution, leading to French support for the American cause, and contributing both military and financial aid that was crucial for the eventual American victory.
Step-by-step explanation:
The turning point of the American Revolution was the Battle of Saratoga, which took place in October 1777. The American victory in this battle bolstered colonial morale and was instrumental in convincing France to enter the war as an ally to the American cause.
Their support was not just diplomatic but also financial and military, providing the Americans with resources that were critical for sustaining the fight against British forces.
The French, still seeking to avenge their defeat by Britain in the Seven Years' War, supplied the United States with gunpowder and money, as well as vital military forces including naval strength.
Notable among the French military leaders was the Marquis de Lafayette, who joined General Washington's staff and became a key figure in the Continental Army's struggle for independence. Ultimately, the assistance from the French helped redirect British resources and attention towards the West Indies and Europe, easing the pressure on American forces.