An American Marine readies to land on Guadalcanal during the five-month struggle for the island between late 1942 and early 1943. Three thousand miles south of Tokyo, Guadalcanal was a major shipping point for military supplies. The Allied victory there in February, 1943, marked a major turning point in the war after a string of Japanese victories in the Pacific. (Photo by Joe Scherschel/Time & Life Pictures)

Aline, along with other rangers and park staff visit the gorilla's in the parks Mikeno sector, where the majority of the gorilla families live in Virunga National Park. Therefore there has been a surge of poaching and violence in the area. For the first time, women have taken up the most dangerous job in wildlife, becoming para-military rangers at the Virunga National Park in DR Congo. (Photo by Monique Jaques)

A combination picture shows Aleppo's Umayyad mosque, Syria, before it was damaged on March 12, 2009 (top) and after it was damaged (bottom) December 13, 2016. (Photo by Omar Sanadiki/Reuters)

Residents observe a police officer take up position during an operation at the Mare slums complex in Rio de Janeiro March 25, 2014. The federal troops have taken control of security operations in Mare slums complex to help quell a surge in violent crime following attacks by drug traffickers on police posts in three slums on the north side of the city, government officials said. (Photo by Ricardo Moraes/Reuters)

Accused Nazi criminal John Demjanjuk wears sunglasses as he arrives for his trial at a court room prior to the assumed verdict on May 12, 2011 in Munich, Germany. (Photo by Johannes Simon/Getty Images)

German field telegraph operators at work in Warsaw. (Photo by Hulton Archive/Getty Images). 1st October 1914

A woman looks out of the window of a house as saris, traditional clothing worn by women, are hanged out to dry in Lalitpur, Nepal on April 17, 2019. (Photo by Navesh Chitrakar/Reuters)

7th August 1941: A Soviet sniper targets the enemy with the telescopic sight on his rifle.