Al Qaeda is also running in Farah, Helmand, Herat and Kabul provinces, as well as a media operations center in Herat.

Source: https://www.longwarjournal.org/archives/2023/07/fact-check-president-bidens-claim-al-qaeda-is-not-in-afghanistan-is-demonstrably-false.php?utm_source=rss&utm_medium=rss&utm_campaign=fact-check-president-bidens-claim-al-qaeda-is-not-in-afghanistan-is-demon

The Helmand River flows from the mountains of the central Afghan province of the same name for more than 1,000 kilometres (600 miles) into Lake Hamoun, which straddles the Afghanistan-Iran border.

Source: https://thefrontierpost.com/iran-warns-afghanistan-in-water-dispute-over-river-dam/

The Helmand River is considered to be an international or transboundary watercourse.

Source: https://thediplomat.com/2023/01/afghanistans-kamal-khan-dam-and-the-helmand-river-treaty/