Republika Srpska joins Serbia's tactical exercise on Drina river (PHOTO/VIDEO)

Ministries of internal affairs of Serbia and Republika Srpska, Bosnia's Serb-majority region, held a joint tactical exercise 'System 2021' on the Bosnia-Serbia border on Friday, as a part of the major exercise that is simultaneously held at more than 50 locations across Serbia with some 8,000 participants involved. Pročitaj više