"Stop for a moment and ask yourself what would happen if the merchant fleets of the world were suddenly to vanish. How would raw materials, fuel, food, medicines, publications, and manufactured products move from one continent to another? No nation is completely self-sufficient; all find advantage in foreign trade. For example, 15 of the materials used in making a telephone in the United States must be imported. The industrialization now beginning in developing nations of Africa, Asia, and South America foretells increasing foreign trade, to be carried by the merchant marine."