An army dog stands up as retiring soldiers salute their guard post before retirement in Suqian, Jiangsu province, China on November 29, 2017. (Photo by Reuters/China Stringer Network)

A German special anti-tank gun is ready to fire during the army maneuvers in Silesia, Poland, on September 22, 1928. (Photo by AP Photo)

Gloria Grahame in state of undress in a scene from the film “Naked Alibi”, 1954. (Photo by Universal/Getty Images)

Musician St Vincent attends the 90th Annual Academy Awards at Hollywood & Highland Center on March 4, 2018 in Hollywood, California. (Photo by Carlo Allegri/Reuters)

A woman made-up with the technique of Body Paint seen during the 2nd Spanish tattoo artists Convention of the Only Tattoo Barcelona in Barcelona, Spain on March 17, 2018. (Photo by Ramon Costa/SOPA Images/Rex Features/Shutterstock)

A model presents a creation for a make-up styling show by Mao Geping at China Fashion Week in Beijing, China March 26, 2018. (Photo by Jason Lee/Reuters)

Female labourers wearing helmets take a break from laying underground electricity cables in Ahmedabad, India, March 7, 2016. (Photo by Amit Dave/Reuters)

Metropolitan Transit Authority (MTA) Police Officer Keith Flood trains with his K-9 partner Doc, a German Shepherd, inside the “warehouse room” at the new MTA Police Department Canine Training Center in Stormville, New York, U.S., June 6, 2016. (Photo by Mike Segar/Reuters)