Soviet maritime developments significantly affect the seagoing activities of the United States and its allies. Soviet bottoms now carry cargoes that once would have been the business of West European shipowners. Russian trawlers compete with the Japanese on most of the world's fishing grounds. And, of course, the developing naval capabilities of the U.S.S.R. threaten the ability of the naval forces of the United States and its allies to carry out their missions in the event of war.