Ukraine’s president has offered to help Poland and other European countries in countering the recent wave of Russian drone incursions – and suggested some of the uncrewed aircraft may have been launched from the Baltic Sea. “If tankers used by Russia are serving as drone platforms, then such tankers should not be free to operate in the Baltic. France, Germany and Sweden said on Monday they would help Denmark increase its security during two European summits in Copenhagen this week. A fortnight ago, Romania said a Shahed attack drone had crossed into its airspace for 50 minutes, before flying back into Ukraine. A few days earlier, about 20 unarmed Russian Geran decoy drones crossed into Poland forcing the closure of four airports.