Eastern Europe is on edge as Russia’s expanding drone war triggers fresh security alarms beyond Ukraine. Poland scrambled military aircraft and placed air-defence and radar systems on heightened readiness during a Russian jet-powered drone attack, although Warsaw later reported no breach of Polish airspace. Meanwhile, Moldova reported several unidentified aircraft crossing its territory, with fragments and an explosion site later found inside Ukraine just 1.2 km from the border. The scares came amid another large Russian aerial barrage. How close is the drone war getting to Europe’s borders?