The Iran-Saudi Arabia rivalry is a complex geopolitical conflict rooted in historical, religious, and ideological differences. This decades-long struggle has shaped Middle Eastern politics, fueling proxy wars and sectarian tensions across the region. Key factors include the Sunni-Shia divide, competition for regional influence, and economic rivalry in oil markets. The conflict has manifested in proxy wars in Syria, Yemen, and Lebanon, with both nations supporting opposing factions to further their interests.