“Shortly after he arrived, Van Agtmael witnessed the aftermath of this suicide bombing at a cafe that soldiers frequented in Mosul. Nine people died and 23 were wounded”. (Photo and caption by Van Agtmael/Harrison Jacobs/Magnum Photos)

A dancer waits to perform during festivities marking the start of the annual harvest festival of “Onam” in Kochi, India, August 19, 2015. The ten-day-long Hindu festival is celebrated annually in India's southern coastal state of Kerala to commemorate the return of King Mahabali to his beloved subjects. (Photo by Sivaram V/Reuters)

Crown line handler Bobby Marie controls “Chain Gang” as the balloon is inflated during the 43nd Annual Helen to the Atlantic Balloon Race and Festival, in Helen, Georgia, USA, 04 June 2016. The race is the oldest balloon event in the southern USA and United States' only long-distance hot air balloon race, according to the organizers. (Photo by Erik S. Lesser/EPA)

Demonstrators protest the shooting death of Alton Sterling near the headquarters of the Baton Rouge Police Department in Baton Rouge, Louisiana, U.S. July 9, 2016. (Photo by Jonathan Bachman/Reuters)

A midnight safari has been caught on camera as wild animals gather in front of a full moon. Photographer Brendon Cremer, 35, snapped the impressive collection of night sky images while in South Africa, Namibia, and Botswana. It can be challenging for even the best photographers to take full control of their camera while ensuring they don’t become the deadly animals' next meal. But this impressive set of images looks both effortless and fierce. Here: A elepant strolls under the milkyway. (Photo by Brendon Cremer/Caters News)

A shorn alpaca walks in a grass field at Alpaca-Land farm in Unken in the Austrian province of Salzburg, Sunday July, 6, 2014. The annual shearing makes the animals more comfortable for the summer months. (Photo by Kerstin Joensson/AP Photo)

Women in Chicago being arrested for wearing one piece bathing suits, without the required leg coverings. (Photo by Topical Press Agency/Getty Images). 1922

A member of the Eton public school O.T.C. (Officers Training Corps) practising shouting out orders during a training session, 20th January 1940. (Photo by Hulton Archive/Getty Images)