The Kouravas were rallied and incited with revenge by Drona's son, the Pandavas and Panchalas were also excited to fury by having slain the Preceptor Drona.
संरब्धा हि स्थिरीभूता द्रोणपुत्रेण कौरवाः। उदग्राः पाण्डुपञ्चाला द्रोणस्य निधनेन च॥