B, the Treaty of Versailles. The other answers refer to WW2
States had emerged as an uncontested authority in Europe.
<em>On December 1, 1955, the modern civil rights movement began when Rosa Parks, an African-American woman, was arrested for refusing to move to the back of the bus in Montgomery, Alabama.</em>
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<h2><em>Can I have a Brainliest?</em></h2>
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I'm gonna guess you said manchuria, or China, or Russia.
In which case, Japan invades China in 1937. Starting the Second Sino-Japanese War.
