British troops have been in Afghanistan for nearly 10 years. Newsround's Ore went to Camp Bastion and Lashkar Gah, to see what life's like on the front line.
British troops are based in Helmand province, and the only way to fly into the bases there is with the military.
Helmand is one of the most dangerous places on earth. Ore had to fly into Camp Bastion after dark because of the threat of rocket fire.
Around 20,000 people live and work in Camp Bastion. Many of them sleep in tents like these. Cosy!
There's loads going on in Lashkar Gah, with helicopters buzzing about and patrols going in and out.
There are huge sand bags everywhere and the whole place is surrounded by a high wall topped with razor wire.
From inside the camp it's easy to forget that the normal Afghans outside are just trying to go about their daily lives.
The conditions in Helmand can be really harsh. In the summer it can reach a scorching 50 degrees, while in winter it drops to a freezing minus 17.
This is Troy. He's a vehicle search dog and is trained to sniff out explosives hidden in cars. He has to search every single vehicle that comes into the Lashkar Gah.
This memorial is to all the troops who have been killed while fighting in Helmand. The cross is made of old cannon shells.