Vukovar is a city in Croatia, in the eastern regions of Syrmia and Slavonia. It contains Croatia's largest river port, located at the confluence of the Vuka and the Danube. Vukovar is the seat of Vuko

Syrmia is a region of the southern Pannonian Plain, which lies between the Danube and Sava rivers. It is divided between Croatia and Serbia. Most of the region is flat, with the exception of the low F