Yaaaaah Yaaaaah 07-02-2017 Social Studies Answered What effect did John Hay's Open door policy letters have on the imperial powers of Britain, France, Germany, Russia, and JapanA It provoked the imperial powers to declare war on the United States B it caused the imperial powers to re-straight trade in their trade with ChinaC it warmed 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 then you
