A Polisario fighter sits on a rock at a forward base on the outskirts of Tifariti, Western Sahara, September 9, 2016. At a rocky outpost in Western Sahara, a new generation of soldiers who have never known war are mobilising as tensions resurface in one of Africa's oldest disputes after a quarter century of uneasy peace. (Photo by Zohra Bensemra/Reuters)

Boys dressed in historical uniforms stand before a military parade in Red Square in Moscow November 7, 2014. The parade marked the anniversary of the 1941 parade when Soviet soldiers marched through the Red Square towards the front lines of World War Two. (Photo by Maxim Shemetov/Reuters)

Israelis in costumes spray water on each other during the annual Tel Aviv Water War on Hbima Square in Tel Aviv, Israel,10 July 2015. The annual water fight is on his 11th edition. (Photo by Abir Sultan/EPA)

London Mayor Boris Johnson takes part in a tug of war with members of the armed services to launch the London Poppy Day, outside City Hall, in London, October 27, 2015. London Poppy Day is a street collection event to raise money for serving and retired members of the armed services and their families. (Photo by Stefan Wermuth/Reuters)

A World War II era P-51 Mustang fighter plane stands in front of a modern 747-8 freighter and a 757 passenger jet at The Boeing Company's centennial celebration in Renton, Washington, U.S. July 15, 2016. (Photo by Alwyn Scott/Reuters)

Women wearing historical costumes walk past a tank before a rehearsal for the Victory Day parade, which marks the anniversary of the victory over Nazi Germany in World War Two, in Saint Petersburg, Russia on April 28, 2022. (Photo by Anton Vaganov/Reuters)

Su-25 jet fighters release smoke in the colours of the Russian state flag over Red Square during a flypast rehearsal ahead of a parade on Victory Day, which marks the anniversary of the victory over Nazi Germany in World War Two, in Moscow, Russia on May 5, 2021. (Photo by Shamil Zhumatov/Reuters)

A boy holds a toy rifle as Hamas militants parade at a rally just over a week after a cease-fire was reached in an 11-day war between Hamas and Israel, Sunday, May 30, 2021, in Beit Lahia, northern Gaza Strip. (Photo by Felipe Dana/AP Photo)