Outraged EU leaders rounded on Viktor Orban after the Hungarian nationalist refused to lift his veto on funds for Ukraine's war effort at a Thursday summit, accusing him of a "gross act of disloyalty" tantamount to "blackmail." It is not the first time Orban has blocked aid to Ukraine, but the anger has been magnified by the fact the Hungarian leader had previously agreed to the deal, says France 24's Kethevane Gorjestani.