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A)
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they acted as a barrier to further settlement to the west
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as according to https://en.wikipedia.org/wiki/American_entry_into_World_War_I
The U.S. was trying to not enter WW1 for at least 2 years
There were three principles created by Chief Justice John Marshall
1: the constitutional is the supreme law of the land
2: the court has the power to rule that a law is unconstitutional
3: in the event of a conflict between laws, the constitution MUST be followed.
Here are some reasons take your pick. Good luck! :)
Japan had modernized weapons
Corruption of the Chinese government-officials embezzled military funds.
Chinese army and navy had little preparation for the war
Japan had better war tactics and strategies
Chinese just finished the War of Opium and were weak
The majority of China’s massive population was not educated