Turkey's war on ISIS

Ambulances leave from the Dag military post, which was attacked by Islamic State militants a day earlier, on the Turkish-Syrian border near Kilis, Turkey, July 24, 2015. Turkish warplanes pounded Islamic State targets in Syria and police detained hundreds of suspected militants across Turkey, a sign that Ankara may have shed its hesitancy in taking a front-line role against jihadist fighters. REUTERS/Murad Sezer

A Turkish Air Force A400M tactical transport aircraft is parked at Incirlik airbase in the southern city of Adana, Turkey, July 24, 2015. Turkey has agreed to allow U.S. planes to launch air strikes against Islamic State militants from the U.S. air base at Incirlik, close to the Syrian border, U.S. defense officials said. REUTERS/Murad Sezer

A plainclothes policeman stands guard following an attack on police officers in Diyarbakir, Turkey, July 23, 2015. A Turkish police officer was shot and killed and a second wounded in the mainly Kurdish city of Diyarbakir in the latest in a series of attacks that began with a suicide bombing blamed on Islamic State, security sources said. REUTERS/Sertac Kayar

Turkish soldiers pray for their comrade Mehmet Yalcin Nane who was killed by Islamic State militants, during a ceremony at a military base in Gaziantep, Turkey, July 24, 2015. REUTERS/Murad Sezer

Seher Nane (C), widow of Turkish Army officer Mehmet Yalcin Nane who was killed by Islamic State militants on Thursday, mourns over her husband's coffin during a funeral ceremony in Gaziantep, Turkey, July 24, 2015. REUTERS/Murad Sezer

Relatives and friends carry the coffins of the victims of this week's bomb attack in Suruc, during a funeral ceremony in Istanbul, Turkey, July 22, 2015. A suspected Islamic State suicide bomber killed at least 30 people, mostly young students, in an attack on the Turkish town of Suruc near the Syrian border. REUTERS/Murad Sezer

An armed man escorts others carrying the coffins of the victims of Monday's bomb attack in Suruc, during a funeral ceremony in Istanbul, Turkey, July 22, 2015. REUTERS/Murad Sezer

People prepare graves for the victims who were killed in Monday's bomb attack, at a cemetery in Suruc, Turkey, July 21, 2015. REUTERS/Stringer

A boy watches as people prepare graves for the victims who were killed in a suicide bomb attack, during a funeral ceremony in Suruc, Turkey, July 21, 2015. REUTERS/Stringer

A Turkish soldier shares a bottle of water with his comrade as they stand guard near the Mursitpinar border gate in Suruc, bordering with Syrian town of Kobani, Sanliurfa province, Turkey, June 27, 2015. REUTERS/Murad Sezer

Smoke rises in the Syrian town of Kobani as it is seen from the Turkish border town of Suruc in Sanliurfa province, Turkey, June 25, 2015. REUTERS/Ali Sahin

Turkish soldiers and an army tank take position at the new site of the Suleyman Shah tomb near the northern Syrian village of Esme, on the Syrian-Turkish border February 24, 2015. REUTERS/Stringer

Plastic bags containing food are brought to the Turkish-Syrian border by Turkish Kurds to be delivered to their relatives in the northern Kurdish town of Kobani, near the Mursitpinar border gate in Suruc, in Sanliurfa province, Turkey, June 26, 2015. REUTERS/Murad Sezer

A Turkish soldier carries a Syrian Kurdish refugee baby from the Syrian border town Kobani, near the southeastern Turkish town of Suruc in Sanliurfa province October 2, 2014. REUTERS/Murad S

Turkish soldiers help Syrian refugees as they cross into Turkey on the Turkish-Syrian border, near the southeastern town of Akcakale in Sanliurfa province, Turkey, June 4, 2015. REUTERS/Kadir Celikcan

A coffin containing the body of an Islamic State militant, is seen in a vehicle on the Syrian side of the border crossing, before being transferred to Turkey, in the northern Syrian town of Kobani January 30, 2015. REUTERS/Osman Orsal

A Turkish soldier stands guard while smoke rises in the Syrian town of Kobani as it is seen from the Turkish border town of Suruc in Sanliurfa province, Turkey, June 26, 2015. REUTERS/Murad Sezer

An armed man, believed to be an Islamic state militant, is seen near the northern Syrian town of Tal Abyad as he is pictured from the Turkish border town of Akcakale, southeastern Sanliurfa province January 29, 2015. REUTERS/Osman Orsal

A Turkish soldier places a carpet next to a military vehicle, as he watches fighting between Kurdish fighters and Islamic State militants, from atop a hill overlooking the Syrian town of Kobani, near the Mursitpinar border crossing on the Turkish-Syrian border in Sanliurfa province November 5, 2014. REUTERS/Yannis Behrakis