An act of remembrance has been held at the Oxfordshire headquarters of a regiment which has lost four soldiers in Afghanistan over the past two years.
A two minutes silence was held by 11 EOD Regiment RLC, based at Vauxhall Barracks in Didcot, to remember those killed in war.
The regiment is the British Army's specialist bomb disposal unit.
Staff Sgt Olaf Schmid, Capt Daniel Read, Capt Daniel Shepherd and Warrant Officer Gary O'Donnell have all died.
Part of the army's Royal Logistic Corps, 11 EOD (Explosive Ordnance Disposal) Regiment is responsible counter terrorist bomb disposal.
Capt Read, 31, from Cornwall, died in an explosion in northern Helmand in January this year, three months after being injured in another blast.
In October 2009, Staff Sgt Schmid, 30, from Winchester in Hampshire, died instantly following an improvised explosive device (IED) explosion in the Sangin region of Helmand Province.
He was commanding an IED team at the time who were dealing with a device.
Capt Shepherd, 28, from Lincoln, was killed while attempting to defuse a roadside bomb in Helmand province in July last year.
He had already neutralised 50 Taleban devices in the previous three months.
Warrant Officer O'Donnell was killed in Helmand in September 2008.