Wikipedia
Syrmia
Syrmia (; ) is a fertile region of the Pannonian Plain in Europe, which lies between the Danube and Sava rivers. The majority of Syrmia is located in the Srem and South Bačka districts of the Autonomous Province of Vojvodina in Serbia. A smaller area around Novi Beograd, Zemun, and Surčin belongs to the City of Belgrade. The remaining part of Syrmia is in Vukovar-Srijem County, Croatia.