How did the spirit of nationalism contribute to the monroe doctrine?

US could not enforce the provision of the Monroe Doctrine but Great Britain had previously proposed that the two nations issue a similar proclamation closing the western hemisphere to future colonization. It was in England’s economic interest that the new Latin nations be allowed to trade with other nations, namely England. While this US “show of force” annoyed the British, Adams realized that the British Navy would help the US uphold the Doctrine. It appeared to the nation that the US was standing up to the powers in Europe and Russia and obtaining our rights on this hemisphere as we saw them.