The German Foreign Office has toughened its travel guidance for Russia and now “strongly” advises against travelling there. The change was made “due to the further deterioration in the situation, including increasingly frequent arbitrary arrests,” the ministry said on Wednesday. The risk of such arrests exists for German citizens and German-Russian dual nationals, the travel advice explicitly states. “In connection with unauthorized rallies and demonstrations, there may be large-scale, sometimes violent action by the security forces throughout the country,” the advisory goes on to say. In the …