Mil Mi-8 combat helicopter flies over Moscow, Russia on May 7, 2019 during the dress rehearsal of a Victory Day air show marking the 74th anniversary of the victory over Nazi Germany in the 1941-1945 Great Patriotic War, the Eastern Front of World War II. (Photo by Sergei Savostyanov/TASS)

Three Chinese soldiers at the time of a civil war in China. (Photo by General Photographic Agency/Getty Images). 1922

A man dressed as the “Star Wars” character Darth Vader sits on a bench in central Lviv, Ukraine, November 24, 2016. (Photo by Gleb Garanich/Reuters)

A Thorneycroft motor van as used during World War I. (Photo by Topical Press Agency/Getty Images). August 1914

Australian singer/songwriter Delta Goodrem comes face-to-face for the first time with a wax figure of herself at Madame Tussauds in Sydney on April 11, 2012. Madame Tussauds, featuring wax doppelgangers of Dannii Minogue, Brad Pitt, Angelina Jolie, Johnny Depp and Lady Gaga, was officially open on April 16. (Photo by Ryan Pierse)

Jeepney passengers are seated in between plastic barriers, wearing face masks and face shields mandatory in public transportation, in Quezon City, Metro Manila, Philippines, August 19, 2020. (Photo by Eloisa Lopez/Reuters)

Australian World War Two veterans place crosses and flags at graves before attending the French-British ceremony at the British War cemetery in Bayeux, June 6, 2014. REUTERS/Leon Neal/Pool

“The Spanish Civil War (The Crusade among Nationalists, Fourth Carlist War among Carlists, The Rebellion or Uprising among Republicans) was a major conflict fought in Spain from 17 July 1936 to 1 April 1939. An estimated total of 500,000 people lost their lives as a consequence of the War”. – Wikipedia. Photo: Actors take part in a re-enactment of the “Battle of Areces” that took place during the Spanish Civil War, in Grullos, north of Spain, September 14, 2013. The re-enactment of the historic 1937 battle was organised by the Frente del Nalon Association. (Photo by Eloy Alonso/Reuters)