True The Mandate of Heaven was the proper way for the Chinese to rule
Answer:
Other countries were turning to communism like Russia and the U.S. didn't want other countries to become communist.
They built a better currency trade so people could buy what they want without plying redicious amounts of money. the bisnusses were not making enough money, the great depression started arround 1929 so the great depression would be a cause of there spending habbits.
america declared war on japan and joined the allies