What Islamic empire are you specifically asking anout
<span>Although the Monroe Doctrine of 1823 was essentially passive (it asked that Europeans not increase their influence or recolonize any part of the Western Hemisphere), by the 20th century a more confident United States was willing to take on the role of regional policeman. In the early 1900s Roosevelt grew concerned that a crisis between Venezuela and its creditors could spark an invasion of that nation by European powers. The Roosevelt Corollary of December 1904 stated that the United States would intervene as a last resort to ensure that other nations in the Western Hemisphere fulfilled their obligations to international creditors, and did not violate the rights of the United States or invite “foreign aggression to the detriment of the entire body of American nations.” As the corollary worked out in practice, the United States increasingly used military force to restore internal stability to nations in the region. Roosevelt declared that the United States might “exercise international police power in ‘flagrant cases of such wrongdoing or impotence.’” Over the long term the corollary had little to do with relations between the Western Hemisphere and Europe, but it did serve as justification for U.S. intervention in Cuba, Nicaragua, Haiti, and the Dominican Republic.
"https://history.state.gov/milestones/1899-1913/roosevelt-and-monroe-doctrine"
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They would drop supplies from planes that flew over West Berlin.
A state's primary election or caucus is usually an indirect election: instead of voters directly selecting a particular person running for president, they determine the number of delegates each party's national convention will receive from their respective state.
In the US voting system, there are two rounds of voting generally every two and four years. First, a primary or a caucus is held. During those, voters pick a party nominee. For example, in a Democratic primary, voters (often but not necessarily registered as Democrats) would pick among Democratic candidates for an office. The winner of that election then goes on to run in the general election against the nominees of the other parties.
But, what is the difference between a primary and a caucus? Why do some states have one but not the other? If you’re confused on this point, you’re not alone. But we’ve got you covered in this electoral rundown.