The 2nd Commando Regiment's history stems from the decision in 1996 to convert 4 RAR, a light infantry battalion, into a Commando Regiment. On 1 February 1997 4 RAR was renamed and re-roled as 4 RAR (Cdo) and commenced the development of Australia's first regular Commando capability. This development was conducted through a period of continuous operational tasking with collective deployments to Solomon Islands, East Timor, Iraq and Afghanistan. Throughout these operations the Regiment served with distinction, notably receiving the Unit Citation for Gallantry for its service as a part of the Special Operations Task Group in 2005-2006.
2nd Commando Regiment's new regimental badge was created to reflect the history and traditions of Australian Commandos and the offensive nature of the unit. The centre feature of the badge is a silver Fairbairn-Sykes fighting knife, universally recognised as the symbol of a Special Forces unit, and is backed by the blackened double diamonds, representative of the felt colour patches worn on Australian Commando uniforms of WWII. The regiments motto is included in a gold scroll ‘Foras Admonitio’, latin for 'Without Warning'. The motto highlights not only the challenges of modern warfare, but the modus operandi of the 2nd Commando Regiment.
As of 01 February 2012, the 2nd Commando Regiment has lost eight of its soldiers KIA while deployed to Afghanistan and another during operational deployment preparation. The Regiment is also supporting the recovery of up to 60 other soldiers who have been seriously wounded in battle or injured on operations and in training. Some of these soldiers will never return to full duty as Commandos. Support to the families of the fallen and to our wounded and their families is a priority of the 2nd Commando Regiment. For the 2nd Commando Regiment the Commando Welfare Trust is a key enabler to ensure the continued support of members and their families. On joining the 2nd Commando Regiment a soldier and his family become Commandos for life.