Iraqi forces announced the launch of a major operation today to flush remaining Islamic State group fighters out of the western desert near the border with Syria. <br/><br/>The arid, sparsely populated wastelands between the Tigris and Euphrates rivers are the last refuge of the jihadists in Iraq after troops and paramilitaries ousted them from both valleys and all urban areas. <br/><br/>The head of Joint Operations Command, General Abdelamir Yarallah, said in a statement, the Iraqi army, the federal police and the Hashed al-Shaabi (Popular Mobilisation paramilitary units) today began clearing the Al-Jazeera region straddling Salaheddin, Nineveh and Anbar provinces.<br/><br/>Iraq's close ally Iran has already declared the victory of IS but Prime Minister Haider al-Abadi said that he would not follow suit until the desert has been cleared.