“The Hunt for Reds in October” — as the search for a mysterious submarine in Swedish waters has been termed — is over, at least for now. The Swedish authorities said Friday that a military team that had included minesweepers, helicopters and ships had been called off after a weeklong search for a vessel that never materialized. “The hunt is over, and now the time has come to analyze what happened,” said Ingela Nilsson, a spokeswoman for the Swedish Defense Ministry. “Everyone in Sweden has been talking about the hunt, and people were proud to see our military can conduct a large operation like this.” At a time of rising East-West tensions, fanned by Russia’s involvement in the Ukraine crisis, the search was the biggest mobilization of its kind in Sweden since the end of the Cold War. Some ground forces will remain on alert, Ms. Nilsson said. Signs of a possible vessel in the Stockholm archipelago were first detected on Oct. 17, and Swedish officials said they suspected that a foreign
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