4th Battalion, Royal Australian Regiment

4th Battalion, Royal Australian Regiment
Active	1 February 1964 – 15 August 1973 1 February 1995 – 19 June 2009
Country	Australia
Branch	Australian Army
Type	Infantry (1964-1973, 1995-1997) Special forces (1997-2009)
Role	Special operations Counter-terrorism Commando
Part of	Special Operations Command
Garrison/HQ	Holsworthy
Nickname(s)	4 Commando
Motto(s)	Duty First
March	Inverbrackie
Engagements	Indonesian Confrontation Vietnam War Battle of Hat Dich Battle of Long Khanh Iraq War 2003 invasion of Iraq
Decorations	Unit Citation for Gallantry
Commanders
Colonel-in-Chief	HM The Queen (Australian Infantry Corps)
Insignia
Unit colour patch

The 4th Battalion, Royal Australian Regiment (4 RAR) was an infantry battalion (later a special forces unit) of the Australian Army, forming part of the Royal Australian Regiment and eventually Special Operations Command. The battalion was formed on 1 February 1964, converted to a special forces unit on 1 February 1997, and was renamed the 2nd Commando Regiment on 19 June 2009.