Rapper Belcalis Marlenis Almánzar, known professionally as Cardi B arrives at Queens Criminal Court on December 10, 2019 in New York City to answer charges over strip club incident. Cardi B has been charged in a 14-count indictment, including two counts of felony attempted assault on two bartenders at Angels Strip Club in the Flushing section of Queens. (Photo by John Angelillo/UPI/Barcroft Media)

(L-R) Sophie Turner, Priyanka Chopra Jonas, and Danielle Jonas during the 62nd Annual GRAMMY Awards at STAPLES Center on January 26, 2020 in Los Angeles, California. (Photo by Kevin Mazur/Getty Images for The Recording Academy)

“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)

American pop star Nicole Scherzinger, 43, of NBC's Annie Live! and FOX's The Masked Singer visits The Empire State Building on November 12, 2021 in New York City. (Photo by Roy Rochlin/Getty Images for Empire State Realty Trust)

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)

Director Pawel Pawlikowski holds his Oscar for best foreign language film for “Ida”, with presenters Chiwetel Ejiofor (L) and Nicole Kidman during the 87th Academy Awards in Hollywood, California February 22, 2015. (Photo by Lucy Nicholson/Reuters)

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.