European Commission President Ursula von der Leyen reaffirmed the European Union's support for Bulgaria and announced stepped-up efforts to strengthen Black Sea security during a visit to Varna, where she met Prime Minister Rumen Radev, who called for a ceasefire and active diplomacy to stop attacks on civilian vessels. Von der Leyen's working visit to Bulgaria was part of a tour of the Black Sea region that also included Romania and Turkey, focusing on security threats and the protection of maritime transport routes. In Varna, she and Radev visited the Cyber Operations Training Center at the Nikola Vaptsarov Naval Academy before addressing the media. ...