What would the united states threaten europe powers came into the western hemisphere

John Quincy Adams, monroe's heir, translated the Monroe Doctrine as the statement of the United States ' dominance in the West hemisphere. Around that moment, the United States was the leading state outside of Europe; Adams wanted to prevent European interference or colonisation, which could make competition for power in America. Adam's government present the change of the Monroe Doctrine from the defensive statement to aggressive foreign policy. Adams needed the United States to accept power of Spanish USA. In 1825, Simón Bolivar organized the Panama legislature in the attempt to unify the Latin American nations. Bolivar nearly decided against inviting the United States because that meeting could give it the opportunity to push its power upon Spanish America. Sure enough, Adams planned to take the meeting to make the common declaration of the Monroe Doctrine from other American countries and to develop trade treaties for the United States . Nevertheless, the United States did not accomplish to reach its goals at the meeting of Panama  .

monarchy doesn’t have to have the hereditary element. there have been elective monarchies in the past where you choose your king-for-life and when he dies elect someone else for the job.