The policy is known as the "Open Door Policy."
John Hay created this idea in hopes that America and countries all over Europe could trade peacefully with China. This concept was developed in order to protect America's trade interests while also ensuring that no other country would establish a monopoly on trade with China. Within this policy, all countries would agree not to interfere with another country's trade with China.
William McKinley winning the Spanish American war. Wilson took the Us into victory in the great war. Hope this helps
Answer:
b.WWII and growth of weapon industries put the U.S back to full employment
Japan-united states hope it helps :)
