US Presidency
1857

The isthmus of Central America, including that of Panama, is the great highway between the Atlantic and Pacific over which a large portion of the commerce of the world is destined to pass. The United States are more deeply interested than any other nation in preserving the freedom and security of all the communications across this isthmus. It is our duty, therefore, to take care that they shall not be interrupted either by invasions from our own country or by wars between the independent States of Central America. Under our treaty with New Granada of the 12th December, 1846, we are bound to guarantee the neutrality of the Isthmus of Panama, through which the Panama Railroad passes, as well as the rights of sovereignty and property which New Granada has and possesses over the said territory. This obligation is rounded upon equivalents granted by the treaty to the Government and people of the United States.