The President of the Republic of Srpska, Željka Cvijanović, said today that the Republic of Srpska and Serbia were working devotedly on the construction of a Banja Luka-Belgrade highway, Trebinje airport, and starting the construction phase of the large energy project Buk Bijela. After the session of the Council for Cooperation between the Republic of Srpska and Serbia, Cvijanović noted that she was satisfied with what