TOPSHOT - Iraqi security forces regroup in the village of al-Buseif, south of Mosul, during an offensive by Iraqi forces to retake the western side of the city from Islamic State (IS) group fighters on February 22, 2017.
Al-Buseif, which was retaken by Iraqi forces, is a key checkpoint on the main Baghdad highway south of Mosul and a natural citadel overlooking the airport and the south of the city. / AFP / AHMAD AL-RUBAYE        (Photo credit should read AHMAD AL-RUBAYE/AFP/Getty Images)