• Turkish army soldiers
  • Soldiers take pictures as flame and smoke are seen following air bombardments during the Northern Thunder exercises, in Hafr Al-Batin, near Saudi Arabia's border with Iraq, March 10, 2016
  • A Turkish soldier gestures while standing on the hill overlooking damaged buildings following heavy fighting between government troops and Kurdish fighters in the Kurdish town of Cizre in southeastern Turkey, which lies near the border with Syria and Iraq, on March 2, 2016
  • A fighter jet flies close to the border in Syrian air space as seen from Turkey's Oncupinar border crossing on the Turkish-Syrian border in Kilis, Turkey, February 9, 2016
  • A youth walks down the stairs near a hole in the wall of a house at a former Libyan army camp known as Camp 27, in the Libyan capital Tripoli (File)
  • Turkish President Tayyip Erdogan (C) gets a briefing from Chief of Staff General Hulusi Akar (R) during his visit to the Gendarmerie Commando Special Forces headquarters in Ankara, Turkey, in this February 16, 2016
  • Qatari soldiers
  • Saudi armoured vehicles
  • Saudi special forces
  • A member of the Emirati armed forces
  • Saudi special forces
  • Destroyed buildings in Homs, Syria.
  • Bahraini soldiers line up at the 35th armored brigade camp, northern Kuwaiti desert (file photo)
  • Senior army commander Abdullah al-Sahian (C), who commands the Saudi forces in Yemen's southern port city of Aden, talks to his soldiers in their base in Aden, in this September 28, 2015 file photo
  • A picture taken June 26, 2011 shows Saudi special forces graduates showing their skills during a ceremony held at their base near the capital Riyadh
  • Everyday life of the Russian air group at the Hmeymim airfield in Syria
  • White house
  • Turkish soldiers patrol on a road near the Turkey-Iraq border in the mainly Kurdish southeastern province of Sirnak (File)
  • Canada's new National Defence Minister Harjit Sajjan gestures after being sworn-in during a ceremony at Rideau Hall in Ottawa, Canada, November 4, 2015.
  • Anti-aircraft missile system S-400 during combat duty to ensure the safety of the Russian air group in Syria