Russia’s prison service said opposition leader Alexei Navalny was detained at a Moscow airport after returning from Germany on Sunday. The prison service said he was detained for multiple violations of parole and terms of a suspended prison sentence and would be held in custody until a court makes a decision in his case. Navalny was detained when he showed his passport to border guards before formally entering Russia, Reuters witnesses said. His wife, Yulia, his spokeswoman and his lawyer were allowed to enter Russia. Navalny had spent the previous five months in Germany recovering from a nerve agent attack that he blamed on the Kremlin, and the prison service earlier said that his being outside the country violated terms of a 2014 suspended sentence for embezzlement. It was the first time Navalny has been back home since he was poisoned last summer. His plane was diverted to another Moscow …