For history we have a video of the Iran-Iraq war. This is the most important war in Iran. The Iran-Iraq border runs along the Shatt al-arab which is a waterway. Iran always guarded the waterway. In 1978-1979 the Iraqi leader Saddam Hussein tried to claim the Shatt al-arab. The war had started. The UN eventually had to break up the war. Combined, the number deaths were about 750,000.