Gopa (caste)
These Gopas, whom Krishna had offered to Duryodhana to fight in his support when he himself joined Arjuna's side, were no other than the Yadavas themselves, who were also the Abhiras. They were the supporters of the Duryodhana and Kauravas, and in the Mahabharata, Abhir, Gopa, Gopal and Yadavas are all synonyms. They defeated the hero of Mahabharatha war (Arjuna), and spared him when he disclosed the identity of the members of the family of Sri Krishna.