Depends what computer u have I think
It was the war that gave birth to modern warfare, introducing machine guns, artillery, and chemical weapons. With new technology, came the need for new tactics and old generals didn't do that, which led to the meat grinder of trench warfare.
The victory at Saratoga was the battle after which Burgoyne surrendered his entire army, giving Americans the final element needed to win the Revolutionary War.
Answer:
A. Some rulers raised armies to conquer larger territories and defend their borders.
B. Rulers made laws for their subjects and set up courts to keep the laws.
D. Conquering rulers seized land from nobles and gave it to those who would swear allegiance to them as king.