Syrian army soldiers patrol near a building previously used for storing seeds in the countryside of Deir Hafer, a former bastion of Islamic State group, near the northern Syrian city of Aleppo on December 2, 2015.
/ AFP / GEORGE OURFALIAN (Photo credit should read GEORGE OURFALIAN/AFP/Getty Images)
PARRIS ISLAND, SC - FEBRUARY 25: Female Marine recruits receive instructions before firing on the rifle range during boot camp February 25, 2013 at MCRD Parris Island, South Carolina. All female enlisted Marines and male Marines who were living east of the Mississippi River when they were recruited attend boot camp at Parris Island. About six percent of enlisted Marines are female. (Photo by Scott Olson/Getty Images)
MUNSTER, GERMANY - MARCH 05: Workers in protective clothing unload a dummy grenade during a press day at the GEKA facility on March 5, 2014 in Munster, Germany. GEKA is federally-funded and its sole function is the destruction of chemical weapons from military arsenals. Syria agreed to give up its chemical weapons last August and disposal, which is already underway on an American ship in the Mediterranean, is scheduled to be completed by June. (Photo by Nigel Treblin/Getty Images)
The damaged hospital in which the Medecins Sans Frontieres (MSF) medical charity operated is seen on October 13, 2015 following an air strike in the northern city of Kunduz. Thirty-three people are still missing days after a US air strike on an Afghan hospital, the medical charity has warned, sparking fears the death toll could rise significantly. AFP PHOTO (Photo credit should read STR/AFP/Getty Images)
Russian Air Force Su-24 bombers fly during a military exercise in southern Russia on February 11, 2015. Marathon talks in Belarus ended on February 12 with a ceasefire announcement in the war between Ukraine and pro-Moscow rebels, but Germany's Chancellor Angela Merkel warned that "big hurdles" remained. AFP PHOTO / SERGEY VENYAVSKY (Photo credit should read SERGEY VENYAVSKY/AFP/Getty Images)