North of Bagdad, rejoined it below Kut-elAmara, an equal distance to the south.
Shortly below Kut-el-Amara all traces of ancient canalization on the east side vanish, and it would appear as though much of that region, now largely under water at flood time, constituted an inland sea.
On the west side, however, there are the remains of several canals or channels, some still carrying water, one of which, the Shattel-Hai, leaving the Tigris at Kut-el-Amara, and emptying into the Euphrates at Nasrieh, is still navigable.
North in the `Ain Khalil ar-Rahman, but receives also the waters of the united Nahr al-Kut (in its upper course formerly the Daisan, /lcipros) from Edessa and Kopru Dagh, and the Jullab from Tektek Dagh about as much farther north.
At the present time it extends from a point just below Kut el-Amara to a point somewhat above Tekrit on the Tigris, and from a point somewhat below Samawa to a point a little above Anah on the Euphrates.
Between the Euphrates and the Arabian plateau lie the sacred cities of Kerbela or Meshed-Hosain, and Nejef or Meshed Ali, with a population of 20,000 to 60,000 each, while a number of towns, varying in population from 3000 to 10,000, are found along the Euphrates (Anah, Hit, Ramadieh, Musseyib, Hilla, Diwanieh and Samawa) and the Tigris (Tekrit, Samarra and Kut elAmara).
Townshend's British forces at Kut-el-Amara on April 19 1916.