The selfie is the most popular photography trend of the internet today. It's gotten so popular, in fact, that even our beloved feline friends have started to catch on. I dare you to keep the smile off your face for this one!

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.

Luna Portnoi emerging Argentine Artist Luna Portnoi has been developing her practice in Buenos Aires for over five years. Her work is deeply connected to themes of color, nature, astronomy, childhood, magic, ancient civilizations, collaboration and the passions, openness and emotions we experience as children that are often left behind in adulthood. Already well known in Buenos Aires, the Artist has also received international press coverage.

Mug shot of De Gracy (sic) and Edward Dalton. Details unknown. Central Police Station, Sydney, around 1920. (Photo by NSW Police Forensic Photography Archive, Justice & Police Museum, Histiric Houses Trust of NSW)

Studio stack: Rabbit? Acanthocinus aedilis, Cerambycidae, A female Timberman (Timbermam perhaps?). Stacked from 216 exposures in Zerene Stacker (PMAX). (Photo by John Hallmén). P.S. All pictures are presented in high resolution.

Joy Corrigan is seen on June 24, 2021 in Los Angeles, California. The 26-year-old American supermodel wore a peach bra and matching shorts with a bright yellow handbag in LA for the Alo Yoga do. (Photo by The Mega Agency)

Indian fashion blogger Diipa Khosla poses for photographers upon arrival at the premiere of the film “Everything Went Fine” at the 74th international film festival, Cannes, southern France, Wednesday, July 7, 2021. (Photo by Brynn Anderson/AP Photo)

“The Only Way Is Essex” star Yazmin Oukhellou, 27, showed off her toned figure in the minidress, which featured sеxy side cut-outs, as she headed out in Hertfordshire in southern Englandon on Saturday, August 14, 2021. (Photo by Splash News and Pictures)