It's first CO was Captain C. D. Fuller. Headquarters were at Albion
Park but later were removed to Kogarah and during the latter part of
World War One to Ashfield.
The badge was a horse rampant in a circle on which was the unit's
title; above the circle was a crown and below it a scroll with the
motto "Virtus in Arduis".
The 28th was classified as Corps Mounted Troops and was attached to
3rd Light Horse Brigade (7th, 9th and 11th Regiments).
During the war years, Capt P. Connolly was temporarily in command. Lt
Col S. J. Shillington, V.D. commanded from 1919 to 1926.
In the re-organisation of 1921, the unit became 21st Light Horse
Regiment (Illawarra Light Horse). The unit's colour patch was a
white triangle with a blue centre.
There were a number of changes in sub-unit localities from 1921 to
1929, within the area bounded by Arncliffe, Milton and Moss Vale.
The Regiment's Guidon received in 1928 bore the honorary distinction
"South Africa, 1899-1902" but no World War One honours as
there was no 21st Light Horse in the A.I.F.
However, in 1936, the following distinctions were approved to be borne
on the Guidons of the several regiments which had no A.I.F.
"parent": ANZAC, GALLIPOLI, 1915; EGYPT 1915-17; PALESTINE,
Amalgamation with 1st Light Horse Regiment (NSW Lancers) occurred in
July 1929, the composite regiment being 1st/21st Light Horse Regiment
(New South Wales Lancers). Four troops of 21st were disbanded,
Mittagong troop was transferred to 7th and four troops were retained
New South Wales Lancers badges, with the designation, 1st/21st,
On 3rd June, 1935, the title "Royal" was bestowed on the NSW
Lancers so the unit's designation became 1st/21st Light Horse Regiment
(Royal New South Wales Lancers). Then in November 1936, the Regiment
was motorized and became 1st Light Horse (Machine Gun) Regiment. The
number 21 was then linked with 7th which thus became known as
7th/21st. At the same time, Nowra and Kangaroo Valley Troops which had
been part of 1st/21st were transferred to 7th/21st.
The 21st was reformed as a separate unit, 21st Light Horse Regiment
(Riverina Horse), in July 1937, with Headquarters in Wagga Wagga. The
other sub-unit locations were:
HQ Sqn: Cootamundra, Stockingbingal, Sydney
"A" Sqn: Narrandera, Griffith, Barellan
"B" Sqn: Holbrook, Urana, Culcairn
"C" Sqn: Tumbarumba, Gundagai, Tarcutta
The 1st became Divisional Troops and
4th Cavalry Brigade now comprised
The badge ensign adopted by 21st was that of Illawarra Light Horse but
with the new designation, "Riverina Horse", and white metal
was used instead of brass.
During the early part of World War Two, there were considerable
changes of personnel as many left to join the A.I.F. and others were
taken in to fill the gaps in the Regiment.
At the end of September 1941, the 21st was placed on full-time duty
and in December 1941, it was mechanized and re-designated 2nd
Divisional Reconnaissance Battalion, which title was changed shortly
afterwards to 21st Reconnaissance Battalion and again in September
1942, to 21st Australian Cavalry Regiment (A.I.F.)
It was transferred from 1st Cavalry Division in December 1941 and its
subsequent service, partly in New South Wales and partly in
Queensland, was successively with 2 Aust. Div., 1Aust. Div., 3 Aust.
Div., 2 Aust. Corps, 3 Aust Armoured Div. In May 1943 came the order to
disband it and form the personnel into five carrier companies.
turned out, two infantry battalion carrier platoons were also formed
from personnel of HQ Sqn (Carrier Companies were to infantry
divisions, tropical scale, what Divisional Cavalry Regiments were to
infantry divisions, normal scale).
Some of these units were sent to New Britain, New Guinea and Torres