The United States, and Germany.
The main way in which the Seven Years War did this was because although the war technically ended in a British Victory, the British suffered heavy losses--meaning that the colonists saw that the British were at least somewhat militarily vulnerable.
Newton's second law is that every object will move in a straight line and in one direction unless acted on by an outside force.
Hope this helps!
Margaret Brown, known by her friends as Maggie, but after her death as The Unsinkable Molly Brown