Answer:
<h2>im sorry but i dont know.</h2>
Explanation:
He wrote it to argue that the characteristics associated with the American national character were indeed forged on the western frontier.
He also argues that it was the Western frontier and it was not the Eastern frontier. I hope this answer helps you out and that you have a great day!!! <3 :)
Government intervention and Disequilibrium
When he went to Milan, the Duke Sforza appointed him to be a military engineer where he had to design weapons and technological advancements that would help the duke gain warfare supremacy against enemies. He also built buildings and defenses, not just offensive weapons.