Hello, the legal issue you are involved in should be self-defense. According to Article 20 of the Criminal Law: "In order to protect national interests, public interests, personal, property and other rights of oneself or others from ongoing unlawful infringement, stopping unlawful infringement and causing damage to the unlawful infringer, it belongs to legitimate defense and does not bear criminal responsibility." According to the above-mentioned legal provisions, only in the case of illegal infringement, to stop the illegal infringement and cause damage to the illegal infringer, is it a legitimate defense. As you said, two people fight, that is, two people fight with each other. According to the argument that there is no justifiable defense, then what you said is not justifiable defense.
Zhiyuan Xin Law Firm suggests that in order to let lawyers fully understand the case and better safeguard your legitimate rights and interests, you can come to a professional law firm for detailed consultation, so that lawyers can give you a more comprehensive and effective solution.