They thought it was another plot to extend slavery.
President Roosevelt used Big Stick diplomacy in many foreign policy situations. He brokered an agreement for an American-led canal through Panama, expanded American influence in Cuba, and negotiated a peace treaty between Russia and Japan. ... force that effects the actions, behavior, or policies of others
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The development of time zones helped a lot to make the train schedules more reliable, because the time zones can create a standard time that all train can use so that they can be unified, and would make a standard that all trains can follow and not be confused by the time in their respective places.