Successful acreculture requires, however, _a man who knows how_. The Japanese know how. The Chinese know how. The Belgians know how. Many of the French, Germans, and Italians know how. The Americans, with few exceptions, do not know how, _but they can be taught_. They will seize the opportunity to learn as soon as it is open to them as part of a large national plan. Every Homecroft Settlement created in the Colorado River Valley should be a great educational institution, a training school to teach men and women how to raise fruit, vegetables, and poultry, and how to prepare their products for market, and how to market them, and how to get their own food from their own acre by their own labor. _Thousands of the immigrants_ now coming to the United States from Southern Europe already know how to do all this and would make ideal colonists for the Colorado River Valley. _Thousands are out of work_ who, if healthy and physically fit, could be trained to garden in a year; to be good gardeners in three years; and to be scientific experts in gardening in five years. In the event of a war under existing conditions we would have to train a million recruits to be soldiers. It is equally certain that men can be trained to be gardeners and Homecrofters. It takes longer to train a Homecrofter than to train a soldier, but it is only a question of time. It can be done and it will be done by the United States as a measure of national defense as soon as the people can be brought to realize the great fundamental fact that the only way they can provide as many soldiers as they might need in some great national emergency is to begin in time of peace--and that means _now_--and train them to be both Homecrofters and soldiers, as the Japanese are trained. The Japanese are a nation of Homecrofters. The Homecroft Reservists who should be trained for national defense by the United States, will get their living as gardeners and Homecrofters when they are not needed as soldiers, or until they are needed as soldiers, as is the case in Japan with their organized reserve of 1,170,000 men and the great majority of their unorganized reserve of 7,021,780 men. The Drainage Basin of the Colorado River has an area of 265,000 square miles. Japan has an area of 147,655 square miles, less than the area of the drainage basin of the Colorado River in Arizona and New Mexico. Arizona alone contains 143,956 square miles, and has a population of only 204,354. Japan has a population of 52,200,200. She now sustains in the Home Country a standing army at peace strength of 217,032, with Reserves of 1,170,000, making a total war strength of about 1,400,000 and she has available for duty but unorganized a total of 7,021,780.