Syrmian Front
{'<entity_0>': 'World War II in Yugoslavia', '<entity_1>': 'Syrmian Front', '<entity_2>': '12 April 1945', '<entity_3>': '21 October 1944', '<entity_4>': 'Yugoslavia', '<entity_5>': 'Slavonia', '<entity_6>': 'Syrmia'}
[['Syrmian Front', 'start time', '21 October 1944'], ['Syrmian Front', 'part of', 'World War II in Yugoslavia'], ['Syrmian Front', 'end time', '12 April 1945'], ['Syrmian Front', 'location', 'Syrmia'], ['Syrmian Front', 'location', 'Slavonia'], ['Syrmian Front', 'location', 'Yugoslavia']]
It was established as part of the Eastern Front in late <entity_3> in <entity_6> and east <entity_5>, northwest of Belgrade. The <entity_1> saw some of the most difficult fighting in <entity_4> in World War II. In late March and early <entity_2>, Yugoslav Army units mounted a <entity_0> on all fronts. The Yugoslav First Army, commanded by Peko Dapčević, broke through German XXXIV Corps defenses in <entity_6> on <entity_2>, quickly capturing the cities of Vukovar, Vinkovci, and Županja, and enabling further advances through <entity_5> toward Slavonski Brod and Zagreb in the last month of the war.
['war front']