Aleksandar Vucic claims Slovakia’s PM Fico is set to visit Russia as Belgrade braces for gas supply challenges Russian President Vladimir Putin is scheduled to meet Slovakian Prime Minister Robert Fico on Monday, Serbian President Aleksandar Vucic has claimed. The reported meeting comes as Belgrade is preparing for the US sanctions against the country’s main oil and gas company, Naftne Industrije Srbije (NIS). “As I learned unofficially, and when I say unofficially, as I said about the