Answer:
Germany's resumption of submarine attacks on passenger and merchant ships in 1917 became the primary motivation behind Wilson's decision to lead the United States into World War I.
Explanation:
Answer: D
Explanation: I dont know for sure, but given that Japan was an Empire and Russia and China were/are Communist Dictatorships, the goernment ran all the stuff.
<h2><u>Answer:</u></h2>
In history its happen ordinarily In the eighteenth century the British forced China to Open their business sectors through narco-dealing opium from India. In the nineteenth century the US constrained Japan to Open its deliberate disengagement arrangement to US shippers and stock under risk of war.
For the most part the Open Door Policy is constrained by Governments who need their well off Individuals and Corporations to work inside a nation in a Capitalistic way. For the most part picking up control of a nations common assets and mean of creation.
They where big trading cities that many people wanted to control and because of it geographic location it was used as a cultural hearth