1) Mountain of Republika Srpska 1) Island of the Danube 
Kozara (Козара) is a mountain in western Bosnia and Herzegovina, in the Bosanska Krajina region, bounded by the rivers Sava to the north, Vrbas to he east, Sana to the south, and Una to the west. Its tallest peak is Lisina (978m). In 1942 Kozara was the site of the Battle on the Kozara, a part of the Yugoslav National Liberation War and Part...