Throughout the course of the long war in Afghanistan, Coalition troops have relied on thousands of military working dogs to help keep them safe, and make their jobs easier. The dogs are trained to detect explosives, to find illegal drugs, to search for missing comrades, or target enemy combatants. Not only are they active on the front lines, but behind the lines they serve as therapy dogs, service dogs, and loyal companions. They also share the same risks as the ground troops, suffering injuries and sometimes death on the battlefields. Gathered here are images of these dogs and their handlers in Afghanistan and back home, from over the past several years, part of the ongoing series here on Afghanistan.

During his time in Ethiopia, New York-based art director and photographer Diego Arroyo spent time with the Hamar, Mursi, Dassanech, and Arbore Tribes. They, along with several others tribes, make up the 200,000 people situated in Africa’s Great Rift Valley. The people of the Omo Valley are still primarily herders and farmers, living an isolated and simple life. While they have yet to be truly touched by globalization, they could soon disappear. Their way of life is being threatened by a massive hydroelectric dam. (Photo by Diego Arroyo)

Being able to look at this world in a different light is the main thing that distinguishes a true artist from a common person. We can clearly see that Lucas Levitan is a true artist despite the crude drawings that he makes. By hunting through thousands of photos that people post on Instagram, he finds the ones that might have a completely different, surprising, and comical theme. For example, a sensual photo of lady’s eyelashes is transformed into a scene in which a farmer is harvesting his crops. This is imagination at its finest, which is why the art works of Lucas Levitan are so interesting to look at. (Photo by Lucas Levitan)

Why would you want to buy a Christmas tree if you have a luscious full beard? Or maybe you have a friend that is willing to volunteer? Just glue some ornaments onto his facial forest and make him stand in the corner. Just don’t forget to feed him! You don’t want your Christmas tree to go bad before the holidays are over! Stephanie Jarstad had created something similar in her project, The Twelve Bears of Christmas, in order to honor the Decembeard (much like Movember), in order to bring awareness to Men’s health problems. (Photo by Stephanie Jarstad)

Cooked and coloured eggs travel along the production line at the Schrall coloured eggs company in the Austrian Village of Diendorf March 16, 2015. Schrall is one of Austria's biggest Easter and coloured eggs producers and makes between eight and 10 million coloured eggs throughout year. (Photo by Leonhard Foeger/Reuters)

A stewardess holding a lightsabre poses for photos with visitors during a tour of the Star Wars themed All Nippon Airways ANA R2D2 Boeing 787 Dreamliner aircraft at Singapore's Changi Airport November 12, 2015. The aircraft was opened to the media on Thursday as it makes its first Asian stop outside Japan. (Photo by Edgar Su/Reuters)

There is something frightening and at the same time appealing in the living sculptures of 27-year-old British artist Emma Fay. Body art in conjunction with the flexibility of acrobats and fantasy of the artist using water-based paints, a brush and sponge, is transformed into a beautiful work of art. It is not immediately possible to make out the human body in the picture. First you look at the landscape and suddenly begin to distinguish someone’s arm, or neck. Or you look into the eyes of an amazing bull, and it turns out that it is perfectly folded back. Lovely people, temples are and wonderful people-insects are.

The time of selfies with duck faces is long gone and ridiculed, though some persist in doing it. Helene Meldahl, however, didn’t want to give up the trend, but had to think of a creative way to keep doing it. So she decided to create comical pictures by drawing over the selfies that she has made. Some people just can’t stop taking pictures of themselves. It makes you wonder, what they would do in an era before the existence of cameras… Oh, poor souls, they would definitely suffer greatly without the possibility of sharing on instagram their “stunning looks” and the pictures of food that they eat every 2 seconds. (Photo by Helene Meldahl)