Syrmian Front

After the September advance through Romania and Bulgaria in October 1944, The Red Army, together with Yugoslav forces, took Belgrade (central communication node of the Balkans) in the Belgrade Offensive. Due to Yugoslav partisan activity,[4] the Yugoslav-Allied Operation Ratweek, and pressure from the Bulgarian Army, the Germans failed to prevent this while they awaited the redeployment of Army Group E troops from Greece. The Red Army decided to exploit this delay and continued to advance with the 3rd Ukrainian Front from Belgrade to south-west Hungary. The aim of the advance was to separate and protect their main attack in Hungary from attacks on the flank by Army Group E from the south.

From September 1944 to January 1945, Army Group E pushed its way through Macedonia, Kosovo, Sanjak, and Bosnia, and soon their sole available escape route was in a line between Sarajevo and Slavonski Brod. For this reason, it was of vital significance for the Germans to defend the zone around Slavonski Brod, which was threatened by the Soviet-Yugoslav advance through Syrmia. To prevent Army Group E from being cut off, the German South-East command prepared seven successive fortified defense lines between the Danube and Sava river from Ruma to Vinkovci. The Syrmian Front campaign consisted of Yugoslavian attempts to break through these lines of defense.

In the trenches of the Syrmian Front, December 1944.

German soldiers surrendering in April 1945.

The Syrmian Front saw some of the most difficult fighting in Yugoslavia in World War II. It lasted for almost six months. As the bulk of the Red Army involved in the Belgrade operation continued their offensive in Hungary, the Yugoslav Army, accustomed to guerrilla warfare in the mountainous terrain of the Dinaric Alps, remained to fight the entrenched front line heavily contested by the Axis on the flat ground of the Pannonian plain.[5] Young men from Vojvodina and Central Serbia, many from freshly liberated regions, were drafted en masse and sent to the front, and the amount of training they received and their casualty levels remain in dispute.[6]

Although mostly stationary, the front moved several times, generally westward, as the Axis forces were pushed back. The fighting started east of Ruma and stabilized in January 1945 west of Šid after the town changed hands due to Axis counterattacks. In late March and early April 1945, Yugoslav Army units mounted a general offensive on all fronts. The Yugoslav First Army, commanded by Peko Dapčević, broke through German XXXIV Corps defenses in Syrmia on 12 April, quickly capturing the cities of Vukovar, Vinkovci, and Županja, and enabling further advances through Slavonia toward Slavonski Brod and Zagreb in the last month of the war.

The campaign can be divided into four distinct phases:

1. The first phase lasted from 24 October to the end of December 1944, and was characterized by slow but steady advancement of Yugoslav and Soviet forces through the seven German fortified lines of defense through fierce battles and heavy losses on both sides.[7]
2. In the second phase, from 3 to 26 January 1945, the Germans performed a successful counterattack with the newly arrived forces of XXXIV Corps of Army Group E, and succeeded in winning back to the Nibelung Line, the main line of defense in Syrmia, while inflicting heavy losses to the Yugoslav Army.[8]
3. The third phase was a stalemate period from 26 January to 12 April 1945. In this period both sides only performed limited reconnaissance activities.[9]
4. The fourth phase began when Yugoslav forces broke through the German defense lines on 12 April, with heavy German losses and fierce battles and Army Group E retreating.[10]

Syrmian Front memorial in Šid

• Đilas, Milovan (1977). Wartime. New York: Harcourt Brace Jovanovich. ISBN 0-15-694712-9.
• Ljubivoje Pajović, Dušan Uzelac, Milovan Dželebdžić: Sremski Front 1944–1945, BIGZ, Belgrade 1979 (in Serbian)
• Pavlowitch, S.K. (2008). Hitler's New Disorder: the Second World War in Yugoslavia. New York: Columbia University Press. ISBN 978-0-231-70050-4.

• Trifković, Gaj (2016). "Carnage in the Land of Three Rivers: The Syrmian Front 1944–1945". Militärgeschichtliche Zeitschrift. 75 (1): 94–122. doi:10.1515/mgzs-2016-0004. S2CID 132224010.