The “Yama” (Pit) memorial is seen in the centre of Minsk May 5, 2015. The memorial is dedicated of the destruction of the Minsk ghetto during World War Two, when several hundred thousands of Jews were slaughtered. Belarus will mark Victory Day on May 9, the 70th anniversary of the Soviet Union's victory over Nazi Germany. (Photo by Vasily Fedosenko/Reuters)

Gas-masked men of the British Machine Gun Corps with a Vickers machine gun during the first battle of the Somme, 1916. (Photo by General Photographic Agency/Getty Images)

Wild elephants, including a tusker (C), rummage through garbage dumped at an open ground in the village of Digampathana in north- central Sri Lanka on August 19, 2017. Sri Lanka has banned the dumping of garbage at open fields and near wildlife reserves, but the practice continues. (Photo by Lakruwan Wanniarachchi/AFP Photo)

Haitians pull a car atop a pushcart in Port-au-Prince, October 11, 1994. The price of gasoline has fallen to about $6 US per gallon since U.S. forces occupied Haiti. Before, gasoline had cost as much as $10 U.S. per gallon. (Photo by Eric Draper/AP Photo)

Belarusian ornithologist Vladimir Ivanovski, 72, stands on a tree as he builds an artificial nest for birds of prey from tree branches, in a marsh near the village of Kazyany, Belarus on October 20, 2019. (Photo by Vasily Fedosenko/Reuters)

A body laying in the street is covered as police block the area around the site of a shooting in Halle an der Saale, eastern Germany, on October 9, 2019. At least two people were killed in a shooting on a street in the German city of Halle, police said, adding that the perpetrators were on the run. “Early indications show that two people were killed in Halle. Several shots were fired. The suspected perpetrators fled in a car”, said police on Twitter, urging residents in the area to stay indoors. (Photo by Sebastian Willnow/dpa/AFP Photo)

Border Security Force (BSF) soldiers ride their camels as they take part in a rehearsal for a road show ahead of the visit of U.S. President Donald Trump, in Ahmedabad, India, February 21, 2020. (Photo by Amit Dave/Reuters)

A German rifleman beside the corpse of a French soldier in a trench at Fort Vaux, France, 1916. (Photo by Hulton Archive/Getty Images)