GALLERY: Gurkhas fight for security in Musa Qaleh

Rifleman Kamal Thapa engaging enemy forces from the roof of a compound [Picture: Log (Sc) Hammond]

Sergeant Sangam Rai gives direction to his men as 6 Platoon engages with the enemy [Picture: Log (Sc) Hammond]

Captain Gajendra Angdembe, 6 Platoon Commander, quickly studies his map before requesting indirect fire support [Picture: Log (Sc) Hammond]

Soldiers from 6 Platoon, B Company, return fire from a compound during Operation Mar Nuno [Picture: Log (Sc) Hammond]

6 Platoon were forced to make a hole in a compound wall to get a visual of the enemy compound in order to return fire [Picture: Log (Sc) Hammond]

Captain Emily Peers, 2 Royal Gurkha Rifles, takes the opportunity to get to know some of the local Afghans during Operation Mar Nonu [Picture: Log (Sc) Hammond]

Corporal Chandra Rai, 3 Section Commander, assesses the situation as 6 Platoon move between compounds [Picture: Log (Sc) Hammond]

Afghan National Police (ANP) search one of the locals as B Company conduct Operation Mar Nonu [Picture: Log (Sc) Hammond]

Rifleman Awash Limbu, 6 Platoon, requests an ammunition resupply for his Light Machine Gun during Operation Mar Nonu [Picture: Log (Sc) Hammond]

Warrior Armoured Fighting Vehicles manned by soldiers of the Princess of Wales's Royal Regiment opens fire on enemy compounds during Operation Mar Nonu [Picture: Log (Sc) Hammond]