The attack and defense game is a game in which an attacker (a group of attackers) has an incentive to revise the status quo and a defender (a group of defenders) wants to protect it. The asymmetry in objectives creates incompatible interests and results in a mixed-strategy Nash equilibrium. However, this equilibrium could be heavily impacted by behavioral considerations.
Sheremeta, R. M. (2019). The attack and defense games. ESI Working Paper 19-17. Retrieved from https://digitalcommons.chapman.edu/esi_working_papers/276/