Some European powers have regarded with disquieting concern the territorial expansion of the United States. This rapid growth has resulted from the legitimate exercise of sovereign rights belonging alike to all nations, and by many liberally exercised. Under such circumstances it could hardly have been expected that those among them which have within a comparatively recent period subdued and absorbed ancient kingdoms, planted their standards on every continent, and now possess or claim the control of the islands of every ocean as their appropriate domain would look with unfriendly sentiments upon the acquisitions of this country, in every instance honorably obtained, or would feel themselves justified in imputing our advancement to a spirit of aggression or to a passion for political predominance. Our foreign commerce has reached a magnitude and extent nearly equal to that of the first maritime power of the earth, and exceeding that of any other.