Sistan is a historical region located in southeastern Iran and southwestern Afghanistan. It is known for its rich cultural heritage and diverse landscapes, including deserts and river valleys. The region has been inhabited for thousands of years and has played a significant role in trade and agriculture due to its proximity to the Helmand River. The area is also home to the Sistani people, who have their own distinct language and traditions. Sistan has faced challenges such as water scarcity and economic difficulties, but it remains an important part of the cultural tapestry of Persian and Afghan history.