“So then,” to quote the unforgettable Stephen Leacock, translating from the Greek, “the mighty hero Ajax leapt (better: was propelled from behind) into the fight.” Here is the paradox of British attitudes toward European unity. On the one hand, Britain has been a member or close associate of nearly all the European institutions so far brought into being. The first important moves in the defense of Europe after the Second World War were the Dunkirk Treaty (1947) between Britain and France, and the Brussels Treaty (1948) between these two countries and Benelux. A few years later the European Defense Community was being discussed, and Britain promised what amounted to little less than membership of it. When E.D.C. collapsed and Western European Union took its place, Britain joined W.E.U. and undertook to keep on the mainland of Europe its main ground force and tactical air force. These forces are not to be withdrawn from the mainland against the wishes of a majority of the W.E.U. powers.