Assuming, therefore, that we may properly insist upon this doctrine without regard to “the state of things in which we live” or any changed conditions here or elsewhere, it is not apparent why its application may not be invoked in the present controversy.

If a European power by an extension of its boundaries takes possession of the territory of one of our neighboring Republics against its will and in derogation of its rights, it is difficult to see why to that extent such European power does not thereby attempt to extend its system of government to that portion of this continent which is thus taken.  This is the precise action which President Monroe declared to be “dangerous to our peace and safety,” and it can make no difference whether the European system is extended by an advance of frontier or otherwise.

It is also suggested in the British reply that we should not seek to apply the Monroe doctrine to the pending dispute because it does not embody any principle of international law which “is founded on the general consent of nations,” and that “no statesman, however eminent, and no nation, however powerful, are competent to insert into the code of international law a novel principle which was never recognized before and which has not since been accepted by the government of any other country.”

Practically the principle for which we contend has peculiar, if not exclusive, relation to the United States.  It may not have been admitted in so many words to the code of international law, but since in international councils every nation is entitled to the rights belonging to it, if the enforcement of the Monroe doctrine is something we may justly claim it has its place in the code of international law as certainly and as securely as if it were specifically mentioned; and when the United States is a suitor before the high tribunal that administers international law the question to be determined is whether or not we present claims which the justice of that code of law can find to be right and valid.

The Monroe doctrine finds its recognition in those principles of international law which are based upon the theory that every nation shall have its rights protected and its just claims enforced.

Of course this Government is entirely confident that under the sanction of this doctrine we have clear rights and undoubted claims.  Nor is this ignored in the British reply.  The prime minister, while not admitting that the Monroe doctrine is applicable to present conditions, states: 

  In declaring that the United States would resist any such enterprise if
  it was contemplated, President Monroe adopted a policy which received
  the entire sympathy of the English Government of that date.

He further declares: 

Though the language of President Monroe is directed to the attainment of objects which most Englishmen would agree to be salutary, it is impossible to admit that they have been inscribed by any adequate authority in the code of international law.

Again he says: