The correct answer is Fort Duquesne. At first the French controlled it and the British attacked to take it from them. The french withdrew and destroyed the fort when they realized the British were going to win and this became a major victory for the British army.
It provided the philosophical underpinnings that is reflected in the Declaration of Independence.
The main thing that the Founding Fathers were trying to create when they divided powers between the judicial, legislative, and executive branches was "<span>d. checks and balances," since they felt that this was the best way to keep any one branch from having too much power. </span>