Answer:
because it became less economically viable to push the borders further, and because of the Persians in the east.
Some may close, others may prosper.
Answer: d: To explore the area of the Louisiana Purchase
Explanation:
Answer:
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Explanation:
General George Marshall contribution during World war II according to the passage is he served as a chief of staff of the US Army. He also helped train US soldiers and airmen in modern warfare in their time. He also manage in the development and procurement of the weapons to helped advance the weaponry of the US Army.