The Islamic Republic of Iran poses a significant threat to global stability and security, with its displays of power through terrorism, cyber operations, and threats of war. Despite mounting evidence of its malign behavior, key sectors of the American security establishment still underestimate the regime's strategic goals and theological fervor. The regime's pursuit of destabilization, terror, and the destruction of its enemies, particularly the United States and Israel, has been ongoing for over four decades. The regime continues to expand its missile capabilities and nuclear program, seeking to extend its regional influence and exacerbate challenges for its enemies. American security officials must abandon the belief that the regime is rational and recognize the true ambitions and threats posed by the Islamic Republic.