Answer:
world war duh everyone knows that
Explanation:
He improved the army and the roads, and created a navy
Friedrich Wilhelm Rudolf GerhardAugust, Freiherr von Steuben, a Prussian military officer, arrives at General George Washington'sencampment at Valley Forge on this day in 1778 and commences training soldiers in close-order drill, instilling new confidence and discipline in the demoralized Continental Army.
I think it is the last answer choice
