Rio de Janeiro's state military policemen aim their guns during a violent protest in a favela next to Copacabana, Rio de Janeiro on April 22, 2014. Violent protests broke out in Rio's landmark beachfront district, Copacabana, following the death of a resident last weekend during clashes with the Army in a nearby favela. (Photo by Christophe Simon/AFP Photo)

German flying ace Baron Manfred von Richthofen (1892–1918) also known as The Red Baron with his dog Moritz, circa 1916.

British soldiers inspect a captured German place in the Horseguards' Parade, London during World War I in November 1914, with the London Eye in the background as a reminder of just how much has changed in the last 100 years. (Photo by Peter Macdiarmid/Getty Images)

People walk with their arms raised as security forces restore order in Nice, France on July 14, 2016. (Photo by SIPA Press/Rex Features/Shutterstock)

Gas-masked men of the British Machine Gun Corps with a Vickers machine gun during the first battle of the Somme, 1916. (Photo by General Photographic Agency/Getty Images)

Pro-Palestian protesters yell at Orlando Police Department officers after they took two protesters into custody and deployed a noxious gas into the crowd during a rally in Orlando, Fla., Saturday, May 11, 2024. (Photo by Willie J. Allen Jr./Orlando Sentinel via AP Photo)

A member of Sisters of the Valley, a non-religious international group founded in 2014 which has pledged to spread the gospel of the healing powers of cannabis, who uses the moniker “Sister Bernardet” online and asked not to give her name for fear of reprisal, smokes a joint at the Sisters of the Valley's farm on the outskirts of a village in central Mexico on September 3, 2023. (Photo by Raquel Cunha/Reuters)

American singer-songwriter Billie Eilish in the last decade of October 2023 partners with Gucci to advocate for animals and gives us something to contemplate. (Photo by Instagram)