Normally the bomb disposal soldiers use a remote- controlled razor blade to cut the wires, while they take cover in case the device is booby trapped with a secondary circuit. But WO2 O'Donnell was trapped with his fingers inside the trigger, and he couldn't get away without detonating the explosives.

To make matters worse, he wasn't wearing a protective bomb suit, like soldiers in Britain often use to give them extra protection from a blast. The massive, unwieldy suits weigh 45kg and they make it difficult for the soldiers to defend themselves if they get attacked en route to a bomb site.

In a single day, WO2 O'Donnell had to defuse eight Taliban bombs on a hill overlooking Helmand's deadly green zone, near Gereshk. The insurgents have started targeting high ground with record numbers of massive improvised explosive devices, because they know it is where the tanks and armoured cars go to provide back-up for soldiers in the valley below.