What were Dowager Empress Cixi's accomplishments during her reign? Check all that apply. She served as the regent for her five-year-old son. She controlled the Qing Dynasty for forty-seven years. She modernized the Chinese military. She put down the Boxer Rebellion. She established the Open Door policy.

when world war i broke out across europe in 1914, president woodrow wilson proclaimed the united states would remain neutral, and many americans supported this policy of nonintervention. however, public opinion about neutrality started to change after the sinking of the british ocean liner lusitania by a german u-boat in 1915; almost 2,000 people perished, including 128 americans. along with news of the zimmerman telegram threatening an alliance between germany and mexico, wilson asked congress for a declaration of war against germany. the u.s. officially entered the conflict on april 6, 1917.

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