Which action was based on the desire to get rich resources into open new ports that would make it easier to trade with Asia the writing of the Monroe doctrine the decision of the Southerners states to succeed the sending of American troops to take western Canada attempts to gain land based on the idea of manifest destiny

Why were americans concerned about the future of north and south america? check all of the boxes that apply. they worried that european countries would take over independent countries in latin america. they thought that european nations could threaten democracy in the united states. they believed that europe would never again return to the americas.