Eventually, FDR's Good Neighbor Policy overturned Theodore Roosevelt's corollary to this policy.
Richard Olney used it to give the US authority to resolve a dispute over the Schomburgk Line, demanding arbitration to forestall a war. An even broader application was allowed in 1928 by the Clark Memorandum. George Canning had first proposed a joint British and American commitment, but John Quincy Adams encouraged solo action by its namesake. Eventually, FDR's Good Neighbor Policy overturned Theodore Roosevelt's corollary to this policy. For 10 points, name this decree which states that the US will not allow European colonial powers to interfere in the Western Hemisphere, promulgated by the 5th President.
Richard Olney used it to give the US authority to resolve a dispute over the Schomburgk Line, demanding arbitration to forestall a war.
{Monroe} Doctrine