Soon after Japan entered the war in December 1941, 7th Division was relieved by the Australian 9th Division so that the former could return to defend Australia; the last members of the 2/4th Fd Regt sailed from the Middle East in January 1942 – the fall of Singapore causing the regiment to disembark in Port Adelaide on 23 March 1942. With the reorganisation of forces to the jungle division structure, the 2/4th Fd Regt was selected to remain as 7th Division's supporting artillery unit. After a long series of manoeuvres in Queensland, the batteries of the regiment arrived in New Guinea with their supported brigades from September 1943. A section of two guns from 2/4 Fd Regt's 8 Bty parachuted into Nadzab on 5 September 1943. The regiment continued operations in support of the 7th Division, including actions in the Finisterres and Shaggy Ridge. The 2/4th Fd Regt AIF was eventually relieved by 4th Fd Regt RAA from 1 February 1944.