In this February 25, 2009 file photo, Bangladesh army soldiers take positions near the headquarters of Bangladesh Rifles in Dhaka. In 2013, a trial court sentenced 152 people to death, but in response to an appeal, the High Court commuted the sentences for eight of them to life in prison and acquitted four others. Another man died during the 370 days of proceedings before Monday's verdict. A total of 846 people, mostly border guards, are facing trial. (Photo by Pavel Rahman/AP Photo)





Local citizens cross a road as pro-Russian militants sit on tanks during their rehearsal for the Victory Day parade in downtown Donetsk, Ukraine, 03 May 2017. The self-proclaimed Donetsk People's Republic inhabitants will mark the 72th anniversary of the then Soviet Red Army victory over Nazi-Germany in WWII on 09 May 2017. (Photo by Alexander Ermochenko/EPA)





Kyrgyz military personnel show their skills during an exercises at a military base, 10 km outside Bishkek, Kyrgyzstan, 25 April 2016. (Photo by Igor Kovalenko/EPA)





A US Army soldier from Scout Platoon 502 Infantry Regiment, 101st Airborne Division, looks at the body of a suspected Taliban IED emplacer who was killed in a coalition missile strike in Zhari district, Kandahar province, Sunday, October 10, 2010. The Scouts' mission was to support roadside bomb clearance efforts in the militant stronghold, the latest days-long phase of Operation Dragon Strike. (Photo by Rodrigo Abd/AP Photo)





Kurdish peshmerga fighters train in the grounds of their camp on November 3, 2014 in Arbil, the capital of the autonomous Kurdish region of northern Iraq. Kurdish peshmerga forces streamed across the Syrian border from Turkey on October 31 to bolster defenders in the key border town of Kobane which is under assault by Islamic State group jihadists. (Photo by Safin Hamed/AFP Photo)





A Pro-Russian separatist fighter holds a grenade as he stands guard at a check point on September 10, 2014 on a road of the Donetsk airport. Ukrainian President Petro Poroshenko said on Wednesday that most Russian troops had been withdrawn from the country, in a move he said boosted the prospects for peace. (Photo by Philippe Desmazes/AFP Photo)





An Ukrainian serviceman shoots with grenade launcher at his position in the Avdiivka industrial zone (Promka) on the frontline near the Ukrainian government-held Avdiivka city, Ukraine, 07 July 2017. German Chancellor Angela Merkel, French President Emmanuel Macron, and Russian President Vladimir Putin noted the importance of implementing a ceasefire in eastern Ukraine's Donbas region at a meeting on the sidelines of the G20 summit in Hamburg, according to Ukrainian Independent Information Agency (UNIAN) report. (Photo by Valeri Kvit/EPA)





A local resident carries bread as a Ukrainian serviceman stands guard in the village of Novotoshkivske near the frontline with pro-Russian separatists, eastern Ukraine on June 8, 2015. (Photo by Gleb Garanich/Reuters)





Female fighters of the Syrian Democratic Forces (SDF) gather during a celebration at the iconic Al- Naim square in Raqa on October 19, 2017, after retaking the city from Islamic State (IS) group fighters. The SDF fighters flushed jihadist holdouts from Raqa' s main hospital and municipal stadium, wrapping up a more than four- month offensive against what used to be the inner sanctum of IS' s self- proclaimed “caliphate”. (Photo by Bulent Kilic/AFP Photo)





A member of the Libyan National Army gestures as he holds his weapon during clashes with Islamist militants in Khreibish district in Benghazi, Libya, November 9, 2017. (Photo by Esam Omran Al-Fetori/Reuters)





Soldiers from the 1st Armored Division, Combat Aviation Brigade, train on how to react if a helicopter crashes into the water before heading to Puerto Rico in order to aid in recovery efforts following Hurricane Maria at Fort Bliss in El Paso, Texas, U.S., September 29, 2017. (Photo by Lucas Jackson/Reuters)





Ukrainian serviceman fires a machine-gun at his position on the front line at the industrial zone of the government-held town of Avdiyivka, Ukraine, December 13, 2017. (Photo by Oleksandr Klymenko/Reuters)





Paratroopers engage ISIS terrorists with precise and strategically placed artillery fire in support of Iraqi and Peshmerga fighters in Mosul, Iraq, on July 6, 2017. (Army photo by Sgt. Christopher Bigelow)





A member of the “Omar Gomez” Western War Front of the National Liberation Army (ELN) guerrilla carries his machine gun in a camp on the banks of the San Juan River, Choco department, Colombia, on November 19, 2017. Colombia's landmark peace deal with Marxist FARC rebels was supposed to mean peace for all but it has made little difference to indigenous and Afro-Colombian minorities, Amnesty International said on November 22, 2017. Although the agreement between the Colombian government and the FARC was signed, armed conflict is still very much the reality for millions across the country, said Salil Shetty, Secretary General at Amnesty International. (Photo by Luis Robayo/AFP Photo)





Iraqi forces, supported by members of the Hashed al-Shaabi (Popular Mobilisation units), advance through the Salaheddin province in the western desert bordering Syria after leaving the town of Baiji, on November 25, 2017, as they attempt to flush out remaining Islamic State (IS) group fighters in the Al-Jazeera region. (Photo by Ahmad Al-Rubaye/AFP Photo)





A U.S. Marine clad in a gas mask dashes from an amtrack vehicle carrying a grenade launcher during offensive exercises in the Saudi Arabian desert, December 7, 1990. (Photo by Peter Dejong/AP Photo)





Tactics reminiscent of the early American frontier days are now being used in Vietnam. Lieutenant Commander Donald D. Sheppard, UBN, of Coronado, California, aims a flaming arrow at a bamboo hut concealing a fortified Viet Cong bunker on the banks of the Bassac River, Vietnam on December 8, 1967. (Photo by AP Photo)





Yemeni tribesmen from the Popular Resistance Committees, supporting forces loyal to Yemen's Saudi-backed President, fire their weapons during clashes with Shiite Huthi rebels and their allies in Beihan, in the Shabwa province, on December 15, 2017. Yemeni government forces retook Beihan district in Shabwa province from the Huthis, their last stronghold in the oil-rich southern province, a senior officer said. (Photo by Abdullah Al-Qadry/AFP Photo)