I believe the answer is: Hundred Years War of 1337
The two main countries involved in the war is England and France. At that time, the church had a massive control in the European government. After the church split, each of these countries claimed ownership of region which controlled by the church before the split, and this resulted in hundred years of war.
There were many important Union generals during the American Civil War. ... Union Army during the later years of the civil war, and later became the President of The United States.
