Familiar as he was with frontier needs and aspirations, he urged the United States to block England's control of the northwest, and to assert title to the Oregon territory, with the idea of ultimately founding a new and independent American nation there. It is true that he admitted that along the ridge of the Rocky Mountains "the western limit of this republic should be drawn, and the statue of the fabled god Terminus should be raised upon its highest peak, never to be thrown down." [Footnote: Register of Debates, I., 712.]
Nevertheless, in his utterances the ideal of expansion was not to be mistaken. He spoke bravely in favor of the protection and extension of the fur-trade, [Footnote: Annals of Cong., 17 Cong., 1 Sess., I., 416; cf. ibid., 18 Cong., I Sess., I., 456.] pointing out that inasmuch as England occupied Oregon, she would, under the law of nations, have the right of possession until the question of sovereignty were decided. He warned his countrymen, in 1823, that Great Britain would monopolize the Pacific Ocean, and by obtaining control of the Rocky Mountain fur-trade would be able to launch the Indians of the north and west against the frontiers of Missouri and Arkansas, Illinois and Michigan, upon the first renewal of hostilities between the United States of America and the king of Great Britain. [Footnote: Ibid., 17 Cong., 2 Sess., 246-251.]
Benton believed that, within a century, a population greater than that of the United States of 1820 would exist on the west side of the Rocky Mountains; and he saw in the occupation of the northwest coast the means of promoting a trade between the valley of the Mississippi, the Pacific Ocean, and Asia. Upon the people of eastern Asia, he thought, the establishment of a civilized power on the opposite coast of America would produce great benefits. "Science, liberal principles in government, and the true religion, might cast their lights across the intervening sea. The valley of the Columbia might become the granary of China and Japan, and an outlet to their imprisoned and exuberant population.... Russia and the legitimates menace Turkey, Persia, China, and Japan; they menace them for their riches and dominions; the same Powers menace the two Americas for the popular forms of their Governments. To my mind the proposition is clear, that Eastern Asia and the two Americas, as they have become neighbors, should become friends." [Footnote: Register of Debates, I., 712.]
With true western passion he denounced the relinquishment of Texas by the treaty of 1819. "The magnificent valley of the Mississippi is ours," he proclaimed, "with all its fountains, springs, and floods and woe to the statesman who shall undertake to surrender one drop of its water, one inch of its soil, to any foreign power." He was ready for a war with Spain, believing that it would give the United States the Floridas and Cuba, "the geographical appurtenance of the valley of the Mississippi"; that it would free the New from the Old World; and that it would create a cordon of republics across the two continents of North and South America. He pointed to the west as the route to the east--the long-sought way to India; and, in imagination, he outlined the states to be laid off "from the center of the valley of the Mississippi to the foot of the shining mountains." "It is time," he wrote, "that Western men had some share in the destinies of this republic." [Footnote: Meigs, Benton, 98, 99, cf. 91.]