The Iran-Iraq War referred to as the Sacred Defense in Iran, was key in shaping the defense identity of the Islamic Republic.
This wasn't just a war that Iran fought with Iraq: an international consortium of many countries was providing the dictator Saddam Hussein with arms and money to defeat the Islamic Republic. But in the end, they were defeated, thanks to the bravery of the Iranian soldiers, ultimately guided by their, and founder of the Islamic Revolution, Ayatollah Seyyed Ali Khamenei.