Men cover their heads from the sun while riding on a motorcycle during a hot day in Cairo, Egypt, August 17, 2015. A heatwave killed at least 61 people across Egypt from Sunday to Tuesday and caused nearly 600 people to be admitted to hospital, Egypt's health ministry said on state news agency MENA on Wednesday. (Photo by Amr Abdallah Dalsh/Reuters)

A man covered with thermal blanket walks along railway tracks beside an improvised refugee camp on the border line between Macedonia and Serbia near the northern Macedonian village of Tabanovce, Thursday, March 10, 2016. Around 1.500 migrants and refugees are stranded at Tabanovce transit center for refugees in northern Macedonia. (Photo by Boris Grdanoski/AP Photo)

A military helicopter flies over people during the Afghan Security Forces Exhibition, at the Darul Aman Palace in Kabul, Afghanistan, Wednesday, March 3, 2021. The three-day military exhibition in Kabul allowed civilians to have a first hand view and take pictures of weaponry used by Afghan Security forces. (Photo by Rahmat Gul/AP Photo)

Young siblings in costume fully embrace the Notting Hill carnival atmosphere in London, England on August 28, 2023. (Photo by Nico Froehlich/The Guardian)

Women walk towards a polling station to cast their ballot during the first phase of voting for the India's general elections in Parbatsar in Rajasthan, on April 19, 2024. (Photo by Himanshu Sharma/AFP Photo)

An Afghani man sells bread on a roadside in Kandahar, Afghanistan, 23 April 2024. A recent World Bank report reveals a 26% decrease in Afghanistan's gross output over the past year, primarily attributed to a 1.3 billion USD income reduction for farmers due to the ban on drug cultivation. Although tax revenue saw a modest increase of 13% in 2023, exports experienced a 15% decline specifically to Pakistan. Afghan officials highlighted efforts to spur domestic production, improve trade, stabilize the national currency, and initiate key economic projects. (Photo by Qudratullah Razwan/EPA/EFE)

Dinosaur expert Jason Hyde, 5, gets to know Bruno the T Rex on August 29, 2024. As the summer holidays draw to a close, parents and children enjoy Dinosaur-themed fun in Darlington town centre, UK, including a T-Rex walk and dino trail. (Photo by James Glossop/ The Times & Sunday Times)

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.