An American soldier walks ahead of an MKIV (Mark IV) British-made tank, circa 1918. (Photo by Hulton Archive/Getty Images)

A woman wearing a face mask to help curb the spread of the coronavirus gets fever checked before going into the Pyongyang Railway Station in Pyongyang, North Korea, Thursday, August 13, 2020. (Photo by Jon Chol Jin/AP Photo)

People help a woman overwhelmed by emotion and the heat during the mass funeral, attended by tens of thousands of mourners, of 613 coffins of newly-identified victims of the 1995 Srebrenica massacre at the Potocari cemetery and memorial near Srebrenica on July 11, 2011 in Potocari, Bosnia and Herzegovina. (Photo by Sean Gallup/Getty Images)

Palestinian refugees walk home in Gaza City on January 19, 2025, making a V sign with their fingers toward the camera, just before the ceasefire took effect. (Photo by Reuters/Yonhap News)

Soldiers try to attach the balloon to their car, June 1944. (Photo by Jared Enos/Mediadrumworld.com)

Soldiers and firefighters carry the body of Chilean President Salvador Allende, wrapped in a Bolivian poncho, out of La Moneda presidential palace after it was bombed during a coup by Gen. Augusto Pinochet in Santiago, Chile, September 11, 1973. (Phoot by El Mercurio/AP Photo)

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

Riot police wear face masks, as a precautionary measure against the COVID-19 coronavirus, allow a women to cross a cordon after a protest by pro-democracy demonstrators at a shopping mall in Hong Kong on May 9, 2020. (Photo by Isaac Lawrence/AFP Photo)