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Declassified per Executive Order 13526, Section 3.3
NND Project Number: NND 63316. By: NWD Date: 2011


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supported, by military strength. For the foreseeable future, therefore, our immediate objective must be to contain and where feasible to reduce the power and influence of the USSR in Asia to such a degree that the Soviet Union is not capable of threatening the security of the United States from that area and that the Soviet Union would encounter serious obstacles should it attempt to threaten the peace, national independence or stability of the Asiatic nations."

NSC 48/1 also recognized that "the colonial–nationalist conflict provides a fertile field for subversive communist movements, and it is now clear that Southeast Asia is the target for a coordinated offensive directed by the Kremlin."

At this time, the NSC believed that the United States, as a Western power in any area where the bulk of the population had long been suspicious of Western influence, should insofar as possible refrain from taking any lead in Southeast Asia. The United States should instead "encourage the peoples of India, Pakistan, the Philippines and other Asian states to take the leadership in meeting the common problems of the area," recognizing "that the non-Communist governments of South Asia already constitute a bulwark against communist expansion in Asia." NSC 48/2 pointed out that particular attention should be given to the problem of Indochina where "action should be taken to bring home to the French the urgency of removing the barriers to the obtaining by Bao Dai or other non-communist nationalist leaders of the support of a substantial proportion of the Vietnamese."

2. Importance of Indochina

Indochina was of special importance because it was the only area adjacent to China which contained a large European army which was in armed conflict with "communist" forces. The Chinese Communists were believed, to be furnishing the Viet Minh with substantial material assistance. Official French sources reported that there were some Chinese troops in Tonkin, as well as large numbers ready for action against the French on the Chinese side of the border. The first NSC memorandum dealing solely with Indochina (NSC 64) was adopted as policy on March 27, 1950. This paper took note of Chinese assistance to the Viet Minh and estimated that it was doubtful that the French Expeditionary forces, combined with Indochinese troops, could successfully contain Ho Chi Minh's forces should they be strengthened by either Chinese troops crossing the border, or by communist-supplied arms and material in quantity.

NSC 64 — written, it should be noted, by the Truman Administration and before the outbreak of the Korean War — observed that "the threat of Communist aggression against Indochina is only one phase of anticipated communist plans to seize all of Southeast Asia." It concluded with a statement of what came to be known as the "domino principle":

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