Mesopotamia The territory between the Euphrates and the Tigris, which now lies in Iraq, belonged to the Ottoman Empire from the 16th century onward. For the British, the occupation of this barren and remote territory, which was only weakly defended by the Turks, held interesting prospects for a variety of reasons: the exploitation of the region’s oilfields offered promising economic perspectives, while the geographical situation of Mesopotamia at the crossroads of a land route connecting India, s…