On September 3, 2008, during an insurgent ambush in the Zharey district of Afghanistan, an anti-tank round destroyed a light armoured vehicle, creating a deadly mass-casualty situation. Exposed to sustained enemy fire and the exploding ammunition from the burning vehicle, Corporal Kochan, then private, assisted and treated one of the wounded soldiers who had been ejected from the vehicle by the blast. With insurgents targeting the casualty collection points, Corporal Kochan’s actions were vital to the treatment and evacuation of casualties.