The creation of a great Military Reserve under the plan proposed for a Homecroft Reserve in the Colorado River Valley for the national defense would require, for its complete and satisfactory fruition, the acquisition by the United States of the territory through which the Colorado River now flows from the present boundary line to the Gulf of California and extending around the head of the Gulf of California.
The Gulf of California should be made neutral waters forever, by treaty between the United States and Mexico, and this treaty should be agreed to by all the nations of the world. The neutral waters thus created should extend far enough into the open sea so that all commerce from the shores of the Gulf of California or reaching the markets of the world through that waterway from any of the vast interior territory embraced in the drainage basin of the Colorado River, could at any time reach the ocean highways of commerce without danger of being waylaid by the hostile ships of war of any nation.
The territory which the United States should thus acquire from Mexico by peaceful agreement and purchase should include the section of land lying north of the most southerly line of New Mexico and Arizona, which runs through or very close to Douglas, Naco, and Nogales, extended due west to and across the Gulf of California and thence to the Pacific Ocean. The land lying north and east of this line and the Gulf of California and Colorado River should become a part of Arizona. The land lying north of the same line and extending from the Colorado River and the Gulf of California on the east to the Pacific Ocean on the west, should become a part of the State of California.
A neutral zone should be created, south of and parallel to the boundary line between the United States and Mexico, extending all the way from the Pacific Coast to the Gulf of Mexico at the mouth of the Rio Grande River. This neutral zone should be controlled by an International Commission.
That commission should also have jurisdiction to determine any controversies that might arise with reference to the Gulf of California. They should have the same jurisdiction over that neutral sea zone as over the neutral land zone. The jurisdiction of such an International Commission might well be extended to cover all controversies that might arise between the United States and Mexico, as to which it might be given full powers as an International Commission of Conciliation or Arbitration, whenever such disputed question was referred to it by the Executive or Legislative authority of either government, and in all cases before an actual declaration of war should be made by either country against the other.
Such an agreement would be of inestimable advantage to both countries, and would more than compensate Mexico for the transfer to the United States of the little corner of land which should be a part of Arizona and California. It is of no possible benefit to Mexico to hang on to it. Its acquisition by the United States is vital to its safe development. Its ownership by Mexico puts the great population that will eventually live in the valley of the Colorado River in the same position with reference to their national outlet to the sea that the people of the Mississippi Valley would be in, if some other nation owned the mouth of the Mississippi River, or that New York would occupy if, for instance, Germany or France owned Long Island and Staten Island and the territory immediately adjacent to the Narrows and Long Island Sound on the mainland.
If the peace advocates in the United States, who limit their energies to the establishment of the machinery for arbitration or conciliation, would go one step farther and work out such a plan as that suggested above for getting rid of a national controversy before it becomes acute, they would render invaluable service to their country. The ownership of the delta of the Colorado River and the head of the Gulf of California is one of those certain points of danger that should be removed. The people of Mexico must realize that, and the creation of a neutral zone and the neutralization of the Gulf of California would be of infinitely greater value to Mexico than the small tract she would transfer to the United States could ever be under any circumstances. For Mexico to continue to hold it, creates a constant danger of friction or conflict which would be entirely removed if it were taken over by the United States.
The situation now is exactly as though one man owned the doorway to another man's house. He could make no real beneficial use of it except to embarrass the owner of the house. Such a situation can only result in controversy. Is it not possible that the advocates of national arbitration and conciliation or of an International Court can be induced to see this and use their efforts to accomplish a great national benefit that is entirely practicable? The plan above proposed would have all the merits claimed for International Arbitration and Conciliation and for an International Peace Tribunal. That is what the proposed International Peace Commission between this country and Mexico would be, in fact, and its value and success being demonstrated in one place where it could be practically put in operation, it would be much easier to get the same plan adopted in wider fields by other nations, and perhaps gradually evolve a world-wide system for an International Peace Tribunal that way.
Another change that should be made in existing boundary lines to facilitate the development of the resources of that country and its settlement by a dense population, is shown by the map on the following page. State lines in the arid region should have been located, so far as possible, where they would have followed the natural boundaries of hydrographic basins. When early errors can be now corrected with advantage to the people it should be done. The development of Northern California would be facilitated by separating it from Southern California at the Tehachapi Mountains. Then the great problem of the reclamation and settlement of the 12,500,000 acres in the Sacramento and San Joaquin valleys could be solved much easier than as the state is now constituted. It would also be to the advantage of Southern California to be able to deal with its vast problems of irrigation development without being complicated with those of Northern California.