BAGHDAD / News Network Iraq stressed US Secretary of Defense Ashton Carter on theimportance of continuing Iraqi government investigations in the framework of the "abuses" which accuses committed by "allied forces against civilians in the vicinity of Fallujah and inside during retrieval from the grip of the " Daash "He stressed Carter a letter addressed to Prime Minister Haider al - Abadi, on Monday, on the need to "complete the Iraqi government 's investigation forthe treatment of persecution of civilians , " stressing that "cleanse Fallujah will give security to thepeople of Iraq and make them closer to defeat Daash once and for all . " He said , "It was a Fallujah process challenge great for the Iraqi security forces and the international coalition to fight Daash, it will not be the last . "He added , US defense Secretary," is still in front of them the intensification of the fighting, as well as the task of care the residents of Fallujah who cause violence Daash in their displacement as well as the reconstruction of the city process can their people to return safely.