 On the day of the concert , trains ran into Sarajevo for the first time since the start of the war . Two lines were opened , one from Mostar to Sarajevo and the other from <unk> to Sarajevo . Although the railways had been functional for the duration of the war , Muslim and Croat politicians could not decide who would operate them . As a result , the trains were only run on the date of the concert to bring fans to the city , and the day after to take them home again . <unk> requirements were temporarily suspended . An effort was made to include all of the country 's ethnic groups at the concert . Approximately 500 fans crossed the ethnic boundary lines between Bosnia 's Serb Republic and the <unk> @-@ Croat Federation . People from several of the other <unk> republics went to Sarajevo for the concert , with buses carrying fans from Zagreb , Croatia and <unk> , Slovenia . Security around the event was strict . SFOR soldiers searched for bombs with <unk> dogs , and the buildings around the stadium were lined with Irish troops and <unk> in case violence broke out . 
