The European Union is closing its airspace to Russian-owned, Russian-registered and Russian-controlled aircraft, European Commission President Ursula von der Leyen said on Sunday. “They won’t be able to land in, take off or overfly the territory of the EU. Including the private jets of oligarchs,” she said in a tweet. Individual EU countries have been announcing bans on Russian planes in its airspace in recent days. Britain has also banned Russian airlines from landing at its airports or crossing its airspace. Von der Leyen praised Ukrainian President Volodymyr Zelensky leadership in the face …