An Afghan National Army (ANA) helicopter flies over a soldier during a training exercise at the Kabul Military Training Centre in Afghanistan October 7, 2015. (Photo by Ahmad Masood/Reuters)

A sunflower “smiles” in a field in Tokyo on August 7, 2014. Some 20,000 sunflowers were enjoyed by visitors to the area this week. (Photo by Yoshikazu Tsuno/AFP Photo)

North Korean soldiers wave along the Yalu River, near the North Korean town of Sinuiju, opposite to the Chinese border city of Dandong October 7, 2014. (Photo by Jacky Chen/Reuters)

The Imperial Russian Ballet members wait to perform Tchaikovsky's “Swan Lake” at Arena hall in central Bosnian town of Zenica December 7, 2014. (Photo by Dado Ruvic/Reuters)

A roadside ice-cream vendor waits for customers at a market in New Delhi, India, April 7, 2016. The Indian economy is characterized by the existence of a vast majority of informal or unorganized labor employment. (Photo by Altaf Qadri/AP Photo)

Model Georgia Salpa attends the UK Premiere of “A Good Day To Die Hard” at Empire Leicester Square on February 7, 2013 in London, England. (Photo by UK Press)

Model Miranda Kerr attends the after party for the 2012 Victoria's Secret Fashion Show at Lavo NYC on November 7, 2012 in New York City. (Photo by Jim Spellman/WireImage)

English actress Michelle Keegan at “The Jonathan Ross Show” TV show, Series 18, Episode 7 in London, United Kingdom on December 4, 2021. (Photo by Brian J. Ritchie/Hotsauce/Rex Features/Shutterstock)