USA HISTORY

Detailed explanation-1: -The Roosevelt Corollary was based on the original Monroe Doctrine of the early nineteenth century, which warned European nations of the consequences of their interference in the Caribbean.

Detailed explanation-2: -Roosevelt acted quickly. In 1902, the United States reached an agreement to buy rights to the French canal property and equipment for a sum not to exceed $40 million. The U.S. then began negotiating a Panama treaty with Colombia. The U.S Department of War would direct excavation.

Detailed explanation-3: -Convinced that all of Latin America was vulnerable to European attack, President Roosevelt dusted off the Monroe Doctrine and added his own corollary. While the Monroe Doctrine blocked further expansion of Europe in the Western Hemisphere, the Roosevelt Corollary went one step further.

Detailed explanation-4: -On the positive side, Roosevelt favored spheres of influence, whereby one great power would generally prevail, such as the United States in the Western Hemisphere or Great Britain in the Indian subcontinent. Japan fit that role and he approved. However he had deep distrust of both Germany and Russia.