US Presidency
1848

They will tend powerfully to preserve us from foreign collisions, and to enable us to pursue uninterruptedly our cherished policy of peace with all nations, entangling alliances with none. Occupying, as we do, a more commanding position among nations than at any former period, our duties and our responsibilities to ourselves and to posterity are correspondingly increased. This will be the more obvious when we consider the vast additions which have been recently made to our territorial possessions and their great importance and value. Within less than four years the annexation of Texas to the Union has been consummated; all conflicting title to the Oregon Territory south of the forty-ninth degree of north latitude, being all that was insisted on by any of my predecessors, has been adjusted, and New Mexico and Upper California have been acquired by treaty.