Question

How was the roosevelt corollary to the monroe doctrine a radical change in american foreign policy

Answer 1

"While the Monroe Doctrine had sought to prevent European intervention, the Roosevelt Corollary was used to justify US intervention throughout the hemisphere. In 1934, President Franklin D. Roosevelt renounced interventionism and established his Good Neighbor policy for the Western Hemisphere."

Answer 2

For the first time, the United States would police disputes between Latin American and European governments.