In September 1939, 4 Brigade Royal Horse Artillery was re-organised as 4 Regiment Royal Horse Artillery with three batteries but was reduced to two batteries in November. In October 1941 a third battery was formed. The Regiment was re-organised in an anti-tank role with 7 Armoured Division in November 1946.
Illustrations of the formation badges under which a unit served or supported are given. This is no guarantee that the unit used this formations badge.
| Sep 39 | RA Group Middle East | Egypt C Battery attached Mobile Division Egypt |
|
| Feb 41 |  |
British Troops Egypt | Benghazi, Libya |
| Apr 41 |  |
7 Support Group | N Africa |
| Feb 42 | 7 Motorised Brigade Group | N Africa | |
| Aug 42 | |
7 Armoured Division | N Africa |
| Sep 42 |  |
1 Armoured Division | N Africa |
| Oct 42 | |
1 Armoured Division | Alamein, Egypt |
| Nov 43 |  |
30 Corps, 5 Army Group RA | Stoke-by-Nayland, Suffolk, UK |
| Mar 44 |  |
1 Corps | Hawick, Roxburghshire, UK |
| Apr 44 | |
1 Corps | Stoke-by-Nayland, Suffolk, UK |
| May 44 | |
1 Corps | Southend, Essex, UK |
| 9 Jun 44 | |
30 Corps, 5 Army Group RA | Hermanville, France |
| Jul 44 | |
30 Corps, 5 Army Group RA | Mouen, France |
| Jul 44 | |
30 Corps, 5 Army Group RA | Cheux, France |
| Aug 44 |  |
2 Army | Vire, France |
| Aug 44 | |
2 Army | Bayeux, France |
| Sep 44 | |
2 Army | Hamme, Belgium |
| Sep 44 |  |
8 Corps | Bree, Belgium |
| Oct 44 | |
8 Corps | Weert, Holland |
| Oct 44 |  |
12 Corps | Poppel, Holland |
| Nov 44 |  |
53 Infantry Division | Stramproy, Holland |
| Nov 44 | |
53 Infantry Division | Baexem, Holland |
| Nov 44 |  |
50 Infantry Division | Panningen, Holland |
| Nov 44 | |
53 Infantry Division | Hunsel, Holland |
| Feb 45 |  |
2 Canadian Corps | Pfalzdorf, Germany |
| Mar 45 |  |
15 Infantry Division | Wardt, Germany |
| Apr 45 |  |
52 Infantry Division | Bremen, Germany |
Batteries
| 3 Sep 39 | C, F/G |
| Nov 39 | C, F |
| Oct 41 | C, F, DD |
| Apr 42 | C, F, DD, 289 Anti-Tank |
| Aug 42 | C, F, DD |
Equipment
| Sep 39 | 18 pdrs (wood wheels), Dragon Tractors |
| Jan 40 | 18/25 pdrs Mk 5P (split trail), Dragon Tractors |
| Nov 40 | 25 pdr Mk2, Quad Tractors |
| Sep 42 | Stuart Observation Post Tanks |
| Sep 44 | 25 pdr Self Propelled Sexton, Sherman Observation Post Tanks |
History of DD (Jerboa) Battery, RHA
War Diaries DD (Jerboa) Battery Apr – Aug 42
War diaries 1939 to 1943 at desertrats.org.uk
War diaries C Battery May 40-Mar 41, Nov 41-Jan 42 & Apr-Aug 42 at desertrats.org.uk
War diaries F Battery Mar-Sep 42, F & G Troop Nov 41-Jan 42 at desertrats.org.uk