It renewed the morale of the American public, but it convinced potential foreign partners, such as France, that American could win the war, and that it might be in their best interests to send aid
The president : Donald Trump
"The Constitution provides that the president "shall have Power, by and with the Advice and Consent of the Senate, to make Treaties, provided two-thirds of the Senators present concur" (Article II, section 2)."
https://www.senate.gov/artandhistory/history/common/briefing/Treaties.htm
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False, China use the silk road to send silk to the rest of the world.
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