The Tigris, alongside the Euphrates, defines Mesopotamia—the "Land Between the Rivers." Rising in Turkey's Taurus Mountains, it flows 1,850 km through Syria and Iraq, joining the Euphrates to form the Shatt al-Arab, which empties into the Persian Gulf.
The Tigris-Euphrates valley nurtured humanity's earliest civilizations: Sumer, Akkad, Babylon, and Assyria. The river provided irrigation for surplus agriculture, enabling cities, writing, law codes, and monumental architecture.
Today, the Tigris remains Iraq's lifeline for water, agriculture, and transport. However, upstream dams in Turkey (e.g., Ilisu Dam) and Syria have drastically reduced flow, causing salinity, marshland loss, and severe diplomatic tensions. Climate change exacerbates the crisis.
Managing this shared resource equitably is critical for regional stability.