Key Facts
- Duration
- Late 1943 – early 1944 (~4 months)
- Amphibious landings
- 2 (east of Lae; Scarlet Beach near Finschhafen)
- Lae captured
- 16 September 1943
- Sattelberg secured
- Late November 1943
- Sio captured
- January 1944
- Key Australian formations
- 7th Division and 9th Division
Strategic Narrative Overview
The campaign opened with an amphibious landing by the Australian 9th Division east of Lae on 4 September 1943, while the 7th Division advanced from Nadzab and diversionary attacks were mounted at Salamaua. Lae fell on 16 September. A second landing near Finschhafen followed, where the Japanese launched two counterattacks at Scarlet Beach that were repulsed. Sattelberg was secured in late November after heavy fighting, and Australian forces then advanced north along the coast through Lakona to Fortification Point against determined Japanese delaying actions.
01 / The Origins
By mid-1943, Allied strategy in the Pacific called for a northward push through New Guinea to isolate the major Japanese base at Rabaul. The Japanese held a line anchored at Lae and Salamaua in north-eastern Papua New Guinea. Allied air and sea interdiction had begun to sever Japanese supply lines, degrading their capacity to hold ground, and a coordinated offensive was planned to clear the Huon Peninsula and open the route toward the Philippines.
03 / The Outcome
Japanese resistance collapsed in the final stage, and Australian forces rapidly advanced along the peninsula's northern coast, capturing Sio in January 1944. Simultaneously, American troops landed at Saidor. Mopping-up operations around Sio continued until March, and Madang fell in April. The campaign cleared the Huon Peninsula of organized Japanese resistance and positioned Allied forces for subsequent operations, including the Aitape–Wewak campaign that opened in November 1944.
Belligerents & Mobilization Analysis
Side A
1 belligerent
Side B
2 belligerents
Kinetic Engagement Axis
Scroll horizontally to view full axis. Events plotted relatively.