An Ukrainian serviceman fires a grenade launcher on positions on the frontline of fighting against pro-Russian separatists near Donetsk on May 30, 2015 in eastern Ukraine. Ukrainian President Petro Poroshenko appointed fiercely pro-Western former Georgian leader Mikheil Saakashvili, who once fought a war with Russia, governor of the strategic Odessa region. (Photo by Genya Savilov/AFP Photo)





A servicemen of Belarus' Interior Ministry's special forces unit takes part in the qualifying examinations for the “Madder Beret” headdress outside Minsk, on November 1, 2016. (Photo by Maxim Malinovsky/AFP Photo)





An Iraqi forces member fires a 23 mm anti-aircraft gun as they advance towards the Old City of Mosul on June 19, 2017 during an ongoing offensive to retake the last district still held by the Islamic State (IS) group fighters. Iraqi forces pushed deeper into Mosul's Old City after launching a final assault on the Islamic State group, warning civilians to stay inside and telling jihadists to “surrender or die”. (Photo by Ahmad Al-Rubaye/AFP Photo)





A Pakistani policewoman fires a heavy machine gun during a special elite police training course at a police training centre in Nowshera, a district in the Khyber Pakhtunkhwa Province on February 11, 2015. Dozens of male and female police took part in a commando training course, introduced by the local police as an additional skill for the police to be deployed to confront terrorism and extremism which is routinely on the rise in this South Asian nuclear-armed country. (Photo by A. Majeed/AFP Photo)





A Syrian rebel fighter from the Failaq al-Rahman aims his weapon on the frontline against regime forces in the rebel-controlled village of Bala, in the eastern Ghouta region on the outskirts of the capital Damascus, on May 15, 2016. (Photo by Abdulmonam Eassa/AFP Photo)





Iraqi pro-government forces advance towards the city of Fallujah on May 23, 2016, as part of a major assault to retake the city from Islamic State (IS) group. Iraqi forces, consisting of special forces, soldiers, police, militia forces and pro-government tribesmen, launched a major assault to retake Fallujah, the scene of deadly battles during the US occupation and one of the toughest targets yet in Baghdad's war on the Islamic State group. (Photo by Ahmad Al-Rubaye/AFP Photo)





Ukrainian servicemen rest near their military equipment inside a military camp in the Donetsk region, on August 29, 2014.. NATO chief Anders Fogh Rasmussen urged Russia on August 29 to halt its “illegal” military actions in Ukraine, accusing it of a “dangerous” attempt to destabilise its western neighbour. The conflict raging in eastern Ukraine has killed nearly 2,600 people, the United Nations said on August 29, voicing concern about atrocities committed by armed groups and the increasing involvement of foreign fighters. (Photo by Oleksandr Ratushniak/AFP Photo)





Afghan policemen perform a drill during exercises at a police training centre in Herat on January 27, 2015. The conflict against the Taliban still rages across Afghanistan, and an estimated 17,000 foreign soldiers will stay on to assist the local police and army, who face a major challenge as the international military presence declines. (Photo by Aref Karimi/AFP Photo)





Ukrainian servicemen take part in the Rapid Trident 2017 joint NATO military drills at the International Peacekeeping Security Center near the village of Starychy, western Ukraine, September 15, 2017. (Photo by Gleb Garanich/Reuters)





A rebel from Colombia's Marxist National Liberation Army (ELN) poses for a photograph in the northwestern jungles, in Colombia, August 31, 2017. (Photo by Federico Rios/Reuters)





In this August 21, 2017 photo released by the U.S. Defense Department, Qatari special operations personnel conduct a military free-fall Friendship Jump over Qatar. The U.S. military has halted some exercises with its Gulf Arab allies over the ongoing diplomatic crisis targeting Qatar, trying to use its influence to end the monthslong dispute, authorities told The Associated Press on Friday, October 6, 2017. (Photo by Staff Sgt. Trevor T. McBride/ U.S. Air Force via AP Photo)





A member of the Syrian Democratic Forces (SDF) fires a rocket-propelled grenade (RPG) during clashes with Islamic State group jihadists near the central hospital of Raqa on October 1, 2017. Syrian fighters backed by US special forces are battling to clear the last remaining Islamic State group jihadists holed up in their crumbling stronghold of Raqa. (Photo by Bulent Kilic/AFP Photo)