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What effect did john hay’s open door policy letters have on the imperial powers of britain, france, germany, russia, and japan? a. it provoked the imperial powers to declare war on the united states. b. it caused the imperial powers to restrict trade in their trade with china. c. it warned the imperial powers that the united states would soon declare war on china. d. it signaled to those powers that the united states would take a larger role in world affairs than before.

At the end of civil war, which reconstruction plan called for a military occupation of the south ? a. lincoln's b. radical's c. johnson's

Which of these was the main reason for the berlin conference? ending african civil wars spreading the christian faith economic benefits for europe new markets for european goods