EU chief Ursula von der Leyen will discuss “energy security” with Ukraine’s leader Volodymyr Zelensky Tuesday, Brussels said, as Hungary is locked in a row with Kyiv over a blocked oil pipeline. Hungary and Slovakia have accused Ukraine of deliberately dragging its feet on re-opening the Druzhba pipeline, which Kyiv says was damaged by Russian strikes in January. JOIN US ON TELEGRAM Follow our coverage of the war on the @Kyivpost_official . Orban, one of the few leaders in the European Union