• The Structure of Army units has changed periodically to reflect changes in technology and tactics. The tables below show the changing organisation of the three major fighting units in the Australian Army:

    The Infantry Battalion

    Year
    Section
    Platoon
    Company
    Battalion
    1917

    Rifle Section: 10 Other Ranks

    Lewis Gun Section:
    10 Other Ranks
    1 Lewis light-machine gun

    Platoon Headquarters (1 Officer, 4 Other Ranks)

    3 x Rifle Section
    1 x Lewis Gun Section

    Company Headquarters (2 Officers, 57 Other Ranks)

    4 x Platoon

    29 Officers, 1007 Other Ranks

    Battalion Headquarters
    4 x Company

    1941

    Rifle Section:
    10 Other Ranks
    1 x Bren light-machine gun
    1 x Thompson sub-machine gun

    Rifle Platoon:
    "mortar)

    3 x Rifle Section

    Rifle Company:

    3 x Rifle Platoon

    33 Officers, 759 Other Ranks

    Battalion Headquarters
    Regimental Aid Post

    Signals Platoon
    Anti-Aircraft Platoon
    Mortar Platoon
    Pioneer Platoon
    Administration Platoon

    4 x Rifle Company

    1944

    (Tropical)

    Rifle Section:
    10 Other Ranks
    1 x Bren light-machine gun
    2 x Owen/Austen sub-machine gun

    Rifle Platoon:
    "mortar, 1 x PIAT [projector, infantry, anti-tank])

    3 x Rifle Section

    Rifle Company:

    3 x Rifle Platoon

    32 Officers, 745 Other Ranks

    Battalion Headquarters
    Regimental Aid Post

    Signals Platoon
    Machine Gun Platoon
    Mortar Platoon
    Tank-Attack Platoon
    Pioneer Platoon

    4 x Rifle Company

    1966

    Rifle Section:
    10 Other Ranks
    1 x M60 GPMG (General purpose machine gun)

    Rifle Platoon:

    3 x Rifle Section

    Rifle Company:

    3 x Rifle Platoon

    37 Officers, 823 Other Ranks

    Battalion Headquarters

    Quartermasters Platoon

    Support Company

    Mortar Platoon
    Signals Platoon
    Anti-Tank Platoon

    4 x Rifle Company

    1993

    Rifle Section:
    9 Other Ranks
    2 x Minimi light support weapon
    1 x M79 grenade launcher

    Rifle Platoon:

    3 x Section

    Rifle Company:

    3 x Rifle Platoon

    39 Officers, 662 Other Ranks

    Battalion Headquarters

    Administration Company
    Transport Platoon
    Quartermasters Platoon
    Catering Platoon
    Technical Support Platoon

    Support Company

    Signals Platoon
    Mortar Platoon
    Assault Pioneer Platoon
    DFSW (Direct fire support weapon) Platoon
    Reconnaissance and

    4 x Rifle Company

    The Light Horse/Cavalry/Armoured Regiment

    Year/Unit
    Section
    Troop
    Squadron
    Regiment

    1916
    Light Horse Regiment

    4 Other Ranks (mounted)

    Troop Headquarters (1 Officer, 3 Other Ranks)

    8 x Section

    4 x Troop

    25 Officers

    Regiment Headquarters
    3 x Squadron

    1941
    Divisional Cavalry Regiment

    N/A

    Carier Troop:
    1 Officer, 10 Other Ranks

    Light Tank Troop:
    1 Officer, 12 Other Ranks, 3 light tanks

    Squadron Headquarters (2 light tanks, 2 universal carriers)

    2 x Light Tank Troop
    3 x Carrier Troop

    37 Officers

    Regiment Headquarters (4 light tanks, 2 carriers)
    Administration Squadron
    3 x Fighting Squadron

    1968

    N/A

    tank troop:
    1 Officer, 12 Other Ranks

    tank squadron:
    Squadron Headquarters (2 armoured personnel carriers, 2 Centurions)

    4 x Tank Troop

    34 Officers

    Regiment Headquarters (2 armoured command vehicles)

    3 x Tank Squadron

    1993

    6 Other Ranks

    Troop Headquarters (1 Officer, 5 Other Ranks, 3 armoured personnel carriers)

    3 x Section

    9 Officers, 132 Other Ranks

    Squadron Headquarters (9 armoured personnel carriers)
    Support Troop (17 armoured personnel carriers, 3 tracked load carriers)
    Administration Troop (4 armoured personnel carriers, 12 tracked load carriers)

    4 x Armoured Personnel Carrier Troop

     

    * Only one armoured squadron served with 1 Australian Task Force (ATF) at any one time during the Vietnam War.
    ** Only a single cavalry squadron served in Somalia with the Australian Forces in Somalia (AFS).

    The Artillery Regiment

    Year
    Detachment
    Section
    Troop
    Battery
    Regiment/Brigade
    1916

    10 Other Ranks
    1 x 18-pounder gun

    18-pounder:

    2 x Detachment

    4.5 inch howitzer:

    2 x Detachment

    N/A

    Battery Headquarters

    20 Officers, 579 Other Ranks

    Brigade Headquarters
    3 x 18-pounder Battery

    1941

    6 Other Ranks

    1 Officer

    Troop Headquarters (1 Officer, 1 Other Ranks)

    2 x Section

    Battery Headquarters

    42 Officers, 385 Other Ranks

    Regiment Headquarters
    3 x Battery

    1968

    7 Other Ranks

    1 Officer

    N/A

    Battery Headquarters
    2 x Section

    447 all ranks

    Headquarters Battery
    3 x Battery