1: ( CNN ) Iraqi forces appear to be slowly closing in on an important tactical victory against ISIS . 2: But as they press forward in their attempt to retake the city of Tikrit from ISIS insurgents , there is an important question that the United States and its allies should be asking : Could this victory actually undermine the only sustainable strategy for ensuring Iraq 's stability ? 3: Iraqi forces have been involved in an offensive to retake Tikrit .
1: closing in 2: press forward 3: involved