News Based on facts, either observed and verified directly by the reporter, or reported and verified from knowledgeable sources. The faults may have been intentionally caused by Russian technicians, which were present at Sliač air base in Slovakia until last year, Naď suggested. The Russian Embassy in Slovakia said Slovakia’s delivery of fighter jets to Ukraine had led to “an unpredictable and dangerous escalation of the conflict, for which the initiators of the decisions taken will be held responsible