Answer:
The Roosevelt Corollary was an addition to the Monroe Doctrine of the 1800s, made by Theodore Roosevelt, President of the United States from 1901 to 1909. According to the Monroe Doctrine, Europeans could not intervene on the American continent; then the Roosevelt Corollary added a stipulation that the United States had priority to intervene there to protect its national interests, both economic and political.
Thus, during the Panamanian revolt in the early 1900s (when it was still part of Colombia), the United States supported the independence revolt, with the objective of guaranteeing itself a space in which to build a canal that connects the Pacific and the Atlantic, protecting its commercial interests.
