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James Wilford Garner has given us a profound, detailed and highly valuable Report on The Law of Treaties. This report contains, it is true, a rule concerning the validity of a treaty which is in conflict with an earlier treaty. On the other hand, there is no consideration, as far as this writer can see, of treaties which are in conflict with general international law, a problem which has been discussed many times.
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Alfred Verdross (1937) studied this question.
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