Private Lamont was deployed with the Health Support Services Company, 1 PPCLI Battle Group during Operation ARCHER. On July 13, 2006, an element of the reconnaissance platoon came under heavy enemy fire from a compound located in Helmand Province, Afghanistan, and was isolated from the rest of the platoon.

During the firefight, another soldier was shot while attempting to withdraw back to the firing line and was unable to continue. Without regard for his personal safety, Private Lamont, under concentrated enemy fire and with no organized suppression by friendly forces, sprinted through open terrain to administer first aid.

Private Lamont's actions demonstrated tremendous courage, selflessness and devotion to duty.