For your first question regarding the Battle of Saratoga, the correct answer is:
- It secured French support for the Americans.
The Battle of Saratoga is often seen as a turning point in the Revolutionary War mainly because it convinced France to formally support the American cause.
For your second question regarding where Cornwallis surrendered, the correct answer is:
- Battle of Yorktown.
The surrender at Yorktown in 1781 effectively marked the end of significant military operations in the Revolutionary War.