"A nearly completed high-level U.S. intelligence analysis warns that unresolved ethnic and sectarian tensions in Iraq could unleash a new wave of violence, potentially reversing the major security and political gains achieved over the last year. . . .
U.S. officials say last year's surge of 30,000 troops, all of whom have been withdrawn, was just one reason for the improvements. Other factors include the truce declared by anti-U.S. cleric Muqtada al Sadr, the leader of an Iran-backed Shiite Muslim militia; and the enlistment of former Sunni insurgents in Awakening groups created by the U.S. military to fight al Qaida in Iraq and other extremists.
The draft NIE, however, warns that the improvements in security and political progress, like the recent passage of a provincial election law, are threatened by lingering disputes between the majority Shiite Arabs, Sunni Arabs, Kurds and other minorities, the U.S. officials said."
Another fine mess the Republi-cons got us into.