EU leaders will discuss bolstering Europe’s defences and Ukraine’s financial firepower at a Wednesday summit in Denmark, where mysterious drone flights have ramped up fears about the threat from Russia. Denmark -- which holds the EU’s rotating presidency -- has been rattled in recent days as unidentified drones shut down airports and flew near military sites. EU leaders meeting in the Danish capital are looking to flesh out details for priority projects, including a “drone wall” aimed at countering Russia’s threat. “Europe must deliver a strong and united response to Russia’s drone incursions at our borders,” EU chief Ursula von der Leyen said Tuesday. But it appears it would be a stretch -- and need the consent of Orban and all the other leaders.