As evidence built up, and could no longer be disregarded, that a state of hostilities might at any moment exist between the United States of America and the Soviet Union, contingency plans on both sides were brought out and dusted off. The difficulty for the Americans was that in addition to losing an intelligence ship they had lost the initiative. The Russians, on the other hand, though clumsy in execution, knew exactly what they were trying to do. Moreover, at this juncture, although they were deeply involved both politically and militarily in the Middle East and in Southern Africa, two additional factors favoured the Russians. First, the satellite status of their allies in the Warsaw Pact, while a prime cause of the growing dissatisfaction which had done so much to bring about the present Soviet pressure on the Americans, had always had the advantage of giving them firm control over all the Pact armed forces, their deployment and operation. Not so with the Americans. Although continually justified to the American people as being indispensable to the national security of the United States, the military alliances of which she was a member, and in particular NATO, had equally been justified by the governments of their other members to
The Americans, therefore, unlike the Russians, would have to consult with their allies about any military action. But this was not all. Unless the Russians chose deliberately to attack within the NATO area, they could be reasonably certain that NATO would take no action to come to America’s assistance.
This inherent weakness in the provisions of the North Atlantic Treaty deserves explanation. When the Treaty was signed on 4 April 1949, the Soviet Union was not a major naval power. She had begun to establish a strong force of submarines based upon the Kola Inlet, where they would have ice-free access to the North Atlantic. But the seas and oceans of the world were not to be treated as extensions of sovereign territory. All that was needed was to include attacks upon the ships and aircraft of a member of the Alliance as cause for acting in collective defence, as with an attack across a land frontier. But surely, it was thought, there must be some geographical limit at sea. Clearly, the waters adjacent to the eastern seaboard of the United States had to be included. As to ocean limits, it was suggested that the boundary be placed at the maximum distance to which submarines operating from the Kola Inlet were likely to proceed on patrol. The Tropic of Cancer was chosen as the limit.
A number of arrangements had been made over the years to mitigate the unfortunate consequences to NATO of the Tropic of Cancer boundary. Chief amongst these was the pooling of Allied naval intelligence. This clearly could not be limited to the North Atlantic Treaty area. After all, wherever in the world the maritime trade of the member nations was to be found, most of it would sooner or later have to pass into the North Atlantic. How could measures for its protection there be co-ordinated without full knowledge of sailing times and routes? And how could the most economical use of shipping be organized, for the support of peoples and a war effort, unless a worldwide view of the available resources could be taken NATO plans provided, therefore, that a Naval Control of Shipping Organization should be set up, and also a Planning Board for Ocean Shipping. It was through the members of these groups, acting informally as individuals and in conjunction with the worldwide shipping community, that an appropriate response began to be evolved to the Soviet Navy’s activities in the Arabian Sea and the Persian Gulf.
It was the British Ambassador in Washington who first communicated to the President of the United States the urgent plea of shipowners not to over-react to Soviet naval provocation. It was pointed out that the Iranians would be bound, in exercising control of shipping in the Gulf, to ensure that the movement of oil cargoes to countries other than the United States would continue. The Japanese, for example, remained almost totally dependent upon Middle Eastern oil. Provided the oil was not cut off at source — and Iran would not connive at this — all was not lost. By switching the destinations of many cargoes already on the high seas and by relying on buffer stocks and alternative sources of supply, the United States should, it was argued, attempt to ‘ride the storm’. The important thing was to determine, if possible, the political objectives which the Soviet Union hoped to achieve by bringing naval pressure to bear on the USA’s Middle Eastern oil supplies, and to consider its best counters.