As a result of the exchanges of views which took place between the military missions to the United States and our own Government, it was determined to begin at once the dispatch of an expeditionary force of the American Army to France. This has been done. General John J. Pershing was selected as commander in chief and with his staff departed for France, to be followed shortly by the full division, consisting entirely of Regular Army troops. Immediately thereafter there was formed the so-called Rainbow Division, made up of National Guard units of many States scattered widely throughout the country. The purpose of its organization was to distribute the honor of early participation in the war over a wide area and thus to satisfy in some part the eagerness of these State forces to be permitted to serve in Europe. The Marines, with their fine traditions and honorable history, were likewise recognized, and regiments of Marines were added to the first forces dispatched. It would, of course, be unwise to attempt any enumeration of the forces at this time overseas, but the Army and the country would not have me do less than express their admiration and appreciation of the splendid cooperation of the Navy, by means of which these expeditionary forces have been safely transported and have been enabled to traverse without loss the so-called danger zone infested by the stealthy and destructive submarine navy of the enemy. The organization and dispatch of the expeditionary force required the preparation of an elaborate transport system, involving not only the procurement of ships and their refitting for service as troop and cargo transports, but also extensive organizations of terminal facilities both in this country and France; and in order to surround the expeditionary force with every safeguard, a large surplus of supplies of every kind were immediately placed at their disposal in France. This placed an added burden upon the supply divisions of the department and explains in part some of the shortages, notably those of clothing, which have temporarily embarrassed mobilization of troops at home, embarrassments now happily passed. In the organization of this transport the constant and helpful cooperation of the Shipping Board, the railroads, and those in control of warehousing, wharfing, lighterage, and other terminal facilities has been invaluable. Our activities in this regard have resulted in the transporting of an army to France fully equipped, with adequate reserves of equipment and subsistence, and with those large quantities of transportation appliances, motor vehicles, railroad construction supplies, and animals, all of which are necessary for the maintenance and effective operations of the force. [Sidenote: Technical troops cooperate with British and French.]