Today, using international relations theories is essential for explaining and analyzing international events and issues. One of the most influential international relations theories is structuralism or neorealism, developed by Kenneth Waltz, which divides into offensive and defensive. Brett Hansen, Toft, and Wivel, with their amendments to Kenneth Waltz's neo-realism, have proposed a model of neo-realism to explain international politics and the foreign behavior of governments. In this model, the strategy of governments against a single pole is affected by the probability of their military conflict. Therefore, if the likelihood of military conflict is low, governments' strategy against a single pole is "Bandwagoning." If the probability of military conflict is high, their approach will be "Balance." What influences the balance and sequence of "Hard" or "Soft" will be "Ideology." In this article, using a descriptive-analytical method, we deal with the confrontation between Iran and the United States. We will say that due to the high probability of conflict and the tremendous ideological distance between them in the region, the Islamic Republic of Iran's strategy against the United States is "Hard Balance."
