1Shi'ite fighters, who have joined the Iraqi army to fight against militants of the Islamic State take part in field training in the desert in the province of Najaf, Sept. 16, 2014.
2Smoke rises from a recent US air strike on Islamic State (IS) militant positions in Khazir, on the edge of Mosul, Sept. 16, 2014.
3Iraqi Kurdish peshmerga troops load rockets into a launcher during fighting with Islamic State militants in Khazir, Sept. 16, 2014.
4Smoke billows after American air strikes in Khazir, Sept. 16, 2014.