A man dressed as Santa Claus skateboards down Fifth Avenue towing a dog before the annual Christmas tree lighting ceremony at Rockefeller Center in New York on December 5, 2019. (Photo by John Angelillo/UPI/Barcroft Media)

Bystanders look on as workers arrange silver blue fabric, part of the process of wrapping L'Arc de Triomphe in Paris on September 13, 2021, designed by the late artist Christo. Work has begun on wrapping the Arc de Triomphe in Paris in silvery-blue fabric as a posthumous tribute to the artist Christo, who had dreamt of the project for decades. Bulgarian-born Christo, a longtime Paris resident, had plans for sheathing the imposing war memorial at the top of the Champs-Elysees while renting an apartment near it in the 1960s (Photo by Geoffroy Van der Hasselt/AFP Photo)

A tiger is depicted on the helmet of Italy's Federica Brignone at the finish area of an alpine ski, women's World Championships super G, in Meribel, France, Wednesday, February 8, 2023. (Photo by Marco Trovati/AP Photo)

Dawlish Carnival 50th anniversary pram race featuring the famous Dawlish Black Swan in England on August 15, 2023. (Photo by nidpor/StockimoNews/Alamy Live News)

Valeria Gonzalez Maidana of Paraguay performs in the final round of the first Budapest Ballet Grand Prix in the National Dance Theatre in Budapest, Hungary on November 23, 2023. The international ballet competition was launched by the Hungarian Dance University, a leading training facility of Hungarian professional dancers, to promote ballet and dance art in Hungary. The competition offers young dancers an opportunity to compete and gain exposure in the international dance scene, and provides scholarships and career opportunities for the most outstanding dancers. The event runs from 21 to 24 November. (Photo by Tamas Vasvari/EPA)

England's Marcus Smith reacts as he scores a try during the Six Nations rugby union international match between France and England at Groupama Stadium, Lyon, France, Saturday, March 16, 2024. (Photo by Laurent Cipriani/AP Photo)

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.

Howard Jackson, a Liberian migrant, poses for a portrait in the Andalusian capital of Seville, southern Spain March 7, 2016. Jackson escaped civil war and spent three years crossing Africa before reaching Spain. Dressed up in one of his more than 200 costumes, from Peter Pan to Little Red Riding Hood, he is a well-known figure at an intersection entering the Spanish city of Seville where he has sold tissues to motorists for over a decade. Jackson is studying law and wants to become a judge. (Photo by Marcelo del Pozo/Reuters)