Qualla: Battle of Ioribaiwa

Battle of Ioribaiwa: Introduction

Thu, 16 Apr 2026 00:00:00 GMT

Photo credit Public domain. From Ioribaiwa Ridge on a clear night in September 1942, the glow of Port Moresby was visible across the intervening hills. Japanese troops of the 144th Infantry Regiment had fought their way 160 kilometers south through jungle and mountain to reach this vantage - close enough that their goal shimmered on the horizon, close enough that they believed they could see the end of their march. They could not. This would be the furthest south any Japanese soldier reached on the Kokoda Track. Over three days, between 14 and 16 September, the last of three Australian defensive actions on the track would slow them just enough that the war, and the geography of the Pacific War itself, would turn against them.

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Image: Public domain

Battle of Ioribaiwa: Two Armies on the Edge of Collapse

Thu, 16 Apr 2026 00:00:00 GMT

Photo credit Public domain. Both sides arrived at Ioribaiwa spent. The Japanese South Seas Detachment under Major General Tomitaro Horii had fought through Kokoda, Isurava, Eora Creek, and Mission Ridge since late July - each battle a win, but each win bought with dwindling rations and lengthening supply li...

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Battle of Ioribaiwa: The Fight on the Ridge

Thu, 16 Apr 2026 00:00:00 GMT

Photo credit Public domain. On 14 September, half of the III Battalion, 144th Infantry stepped off into attack along the main track, supported by a quick-firing mountain battery whose shells cracked through the canopy above Australian positions. They hit booby traps first - trip wires the composite 2/14th-2...

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Battle of Ioribaiwa: What the Japanese Did Not Know

Thu, 16 Apr 2026 00:00:00 GMT

Photo credit Public domain. Horii's men took the ridge on 16 September and looked south into nothing. Beyond Imita lay the coastal plain, Port Moresby, and - they believed - the prize. But they did not have the food to reach it. The 144th and 41st Infantry Regiments had marched for weeks on supplies hand-ca...

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Image: Public domain

Battle of Ioribaiwa: A Turning Kept Quiet

Thu, 16 Apr 2026 00:00:00 GMT

Photo credit Public domain. No dramatic breakthrough took place at Ioribaiwa. No brilliant maneuver, no surrender. The Japanese won the tactical fight and withdrew from the strategic one - driven back by logistics and distant battles on Guadalcanal and Milne Bay as much as by the Australians in front of the...

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Image: Public domain

Battle of Ioribaiwa: The Ridge Today

Thu, 16 Apr 2026 00:00:00 GMT

Photo credit Public domain. Ioribaiwa Ridge sits in dense rainforest about forty kilometers north of Port Moresby, on the modern trekking route used by thousands of Australian walkers each year. Trekkers pass the weapon pits, still visible as depressions in the ground, and the ridge where the Japanese advan...

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Image: Public domain