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External affairs have exercised the minds and loyalties of a sizeable section of Singapore's politically articulate population ever since the first preparations towards self-government were taken in 1955. Even though questions of defence and foreign policy were until September 1963 the responsibility of Whitehall exclusively and thereupon transferred to the Malaysian central government, Singapore developed its own informal relationships with several foreign or Commonwealth states during those years and hotly debated international problems which seemed to impinge on the island's political future.
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Peter Boyce (1965) studied this question.
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