Within the 1991 Yugoslav campaign in Croatia, the 5th (Banja Luka) Corps of the Yugoslav People's Army ("Jugoslovenska Narodna Armija" – JNA) was tasked with advancing north through western Slavonia, from Okučani to Daruvar and Virovitica, and with a secondary drive from Okučani towards Kutina. This task was essentially consistent with the line expected to be reached by the main thrust of the JNA advancing from eastern Slavonia in about a week. The linkup was designed to facilitate a further advance west to Zagreb and Varaždin.