ABSTRACTWithin the context of Arctic geopolitics, the article focuses on British policies toward Spitsbergen or Svalbard over the past century. The 1920 Spitsbergen Treaty accorded Norway sovereignty over the archipelago, but it gave other signatories, including Britain, non-discriminatory access to its natural resources. It is argued that while geopolitical interests have played a role in Britain's policy-making, its main rationale has been a determination to use international law to protect pre-existing mining rights and potential future oil rights in the Svalbard area. Apart from Russia, Britain has been most active in challenging Norway's interpretation of its sovereign rights, especially the view about the treaty's non-applicability to Exclusive Economic Zones and continental shelves. It is shown that the Britain's economic focus was tempered during the Cold War by the need for Western solidarity and for supporting Norway's resistance to Soviet Spitsbergen claims. But having been instrumental in wate...