The animosity between Iraq and Iran is deeply rooted in historical rivalries, particularly over territorial claims like the resource-rich province of Khuzestan. The Iran-Iraq War from 1980 to 1988 intensified these hostilities, with both nations historically contesting dominance in the region. Current dynamics are influenced by sectarian divisions, as both countries predominantly consist of Shiite Muslims, which complicates their relationship further. The U.S. involvement in the region, including support for Iraq during the war, has left a legacy of distrust that continues to affect perceptions. The future of Iraq-Iran relations remains uncertain, especially with Iran's nuclear ambitions and Iraq's strategic positioning.