The maternal uncle did not recognise his sister's son, and the friend did not recognise the friend. the Pandava and the Kuru forces fought as if they had been possessed by demons.
न मातुलं च स्वस्रीयो न सखायं सखा तथा। आविष्टा इव युद्धयन्ते पाण्डवाः कुरुभिः सह॥