Red cross: Did you mean...?

A photograph of a woman radio operator in the Soviet Red Army during the Second World War (1939-45). (Imperial War Museums)

A red-figure drinking cup with a depiction of Eros. Attica, c. 470 BCE. On display as part of the 2018 CE exhibition 'Naked! The Art of Nudity' at the Antikenmuseum, Basel, Switzerland. © Ruedi Habegger, Antikenmuseum...

Greek red figure stemless cup from Apula, 330-320 BCE, depicting a dancing maenad - female follower of Dionysus - holding a bell and tambourine. (Archaeological Museum, Milan)

A February 1942 photograph showing Red Army T34 tanks being taken to the front during the Second World War (1939-45). (RIA Novosti Archive)

Cao Cao (d. 220 CE), the Chinese warlord, recites a poem prior to the Battle of Red Cliffs. (Summer Palace Beijing)

A c. March 1942 photograph of a Soviet Red Army unit using a Maxim heavy machine gun. (Imperial War Museums)

Red-figure vase depicting a bride being prepared for her wedding. Part the Adrano Group, 330-320 BCE. Sicily, Italy. Collection of the Pushkin Museum. (Image has been digitally altered for clarity)

A PPSh-41 submachine gun, padded jacket, and fur hat, all typical elements of Red Army rifle infantry units during the Second World War (1939-45). (Memorial de la Paix, Caen, France)

Two British postage stamps bearing the portrait of Queen Victoria (reign 1837-1901). The Penny Black was the world's first postage stamp and issued from May 1840. As it was difficult to see an obliteration stamp...

The Battle of Red Cliffs, 208 CE, China, between the Cao Cao and warlords Liu Bei and Sun Quan.