4th New Guinea Infantry Battalion
|4th New Guinea Infantry Battalion|
|Colours||Red and Green|
|Battle honours||South West Pacific 1942–45, Kokoda Trail, Kokoda-Deniki, Nassau Bay, Tambu Bay, Finschhafen, Scarlet Beach, Liberation of Australian New Guinea, Sio-Sepik River, Kaboibus-Kiarivu and Bonis-Porton|
|Unit Colour Patch|
The 4th New Guinea Infantry Battalion (4NGIB) was a battalion of the Australian Army formed in August 1945 in the territory of New Guinea, during World War II, in order to fight against the Japanese. Its soldiers were primarily natives of New Guinea, under the command of Australian officers and NCOs. The battalion was disbanded soon after its establishment, and subsequently it never saw active service.
The Papuan Infantry Battalion (PIB) along with the 1st and 2nd New Guinea Infantry Battalion were amalgamated to form the Pacific Islands Regiment in November 1944. The 3rd and 4th New Guinea Infantry Battalion joined the regiment in 1945, although 4NGIB was soon disbanded, whilst the 5th New Guinea Infantry Battalion—although authorised—was never raised. The battalion was disbanded in October 1945.
- World War II: South West Pacific 1942–45, Kokoda Trail, Kokoda–Deniki, Nassau Bay, Tambu Bay, Finschhafen, Scarlet Beach, Liberation of Australian New Guinea, Sio–Sepik River, Kaboibus–Kiarivu and Bonis–Porton.
- Lieutenant Colonel J.S. Jones (1945)
- Sinclair 1990, p. 296.
- Sinclair 1990, p. 273.
- The battle honours listed above are those awarded to the PIR in 1966 as listed in Byrnes 1989, p. 269.
- Byrnes, G.M. (1989). Green Shadows: A War History of the Papuan Infantry Battalion, 1 New Guinea Infantry Battalion, 2 New Guinea Infantry Battalion, 3 New Guinea Infantry Battalion. Newmarket: G.M. Byrnes. ISBN 0-7316-6716-6.
- Sinclair, James (1990). To Find a Path: The Life and Times of the Royal Pacific Islands Regiment: Volume I — Yesterday's Heroes 1885–1950. Brisbane: Boolarong Publications. ISBN 0-7316-9120-2.