Commanding the 2/11th Battalion, Sandover took up defensive positions in the hills around the airstrip of Rethymno, Crete, along with the 2/1st Battalion, supported by elements of 2/3rd Field Regiment, 2/1st Machine Gun Battalion and members of the Cretan Police. Lieutenant Colonel Ian Campbell, commander of the 2/1st Battalion, was appointed overall commander of the Rethymno Force.
On 20 May 1941 German paratroopers landed on Crete. The fighting was severe at times as the Australian and Greek units fought to contain the German landings.
Campbell's forces were doing well in comparison with allied efforts on other parts of the island. The 2/11th Battalion along with the Cretan Police were able to force back the German paratroopers to Perivolia in which the 2/11th Battalion, in a series of counter attacks, attempted to drive the German forces from the village.
On 28 May the British main force was in full retreat. Messages to Lieutenant Colonel Campbell informing him of the retreat and evacuation never reached Rethymno. By 29 May the Rethymno force was trapped but had still denied German forces the airfield.
On 29 May Lieutenant Colonel Campbell surrendered but Sandover gave his men the option of either surrendering or, after destroying their weapons, taking to the mountains and escaping from Crete in any way possible. Many of Sandover's men took the latter option and evaded capture, living in the mountains with assistance from the local civilian population.[7]
The landing at Jacquinot Bay was an Allied amphibious operation during the New Britain Campaign that was conducted as part of a change of garrison with the Australians taking over from US Infantry Divisions.
On 4 November 1944, Sandover's 6th Brigade landed largely unopposed with the initial landing by 14th/32nd Battalion with support from naval forces and aircraft.
Promotions
Sandover was promoted four times from 1941 to 1946.[5]
20 April 1941
Temporary lieutenant colonel
22 November 1941
Lieutenant colonel
1 May 1943
Colonel
1 May 1943
Temporary brigadier
19 January 1946
Granted the honorary rank of brigadier
Commands
Sandover commanded the 2/11th Infantry Battalion, the 6th Australian Infantry Brigade and the Lae Base Sub-area. He retired from military service on 19 January 1946.[2][4][5]
20 April 1941
1 May 1943
Commanding Officer 2/11th Infantry Battalion.
1 May 1943
27 July 1945
Commanding Officer 6th Australian Infantry Brigade [New Britain].