The primary focus of game theory in operations research is to analyze strategic interactions between multiple decision-makers, or "players," where the outcome for each player depends not only on their own actions but also on the actions of others. Game theory helps in identifying optimal strategies for each player by considering the possible decisions and payoffs for all parties involved. It addresses competitive situations, such as conflicts or negotiations, where players may have conflicting interests. By modeling these interactions, game theory aids in predicting the likely outcomes, identifying stable strategies (like the Nash equilibrium), and guiding decision-makers toward strategies that maximize their payoffs while minimizing potential losses, often under conditions of uncertainty or limited information.