The Japanese failed to capture the Australian base at Wau, halting their overland advance in New Guinea and securing a key Allied position near Salamaua and Lae.
Key Facts
- Date range
- 29 January – 4 February 1943
- Theater
- Pacific Theater, New Guinea campaign
- Japanese staging point
- Rabaul, crossing the Solomon Sea to Lae
- Australian reinforcement method
- Airlifted defenders, weather permitting
- Japanese approach
- Overland trek across mountains
- Outcome
- Japanese failed to capture Wau despite tactical surprise
Location
Cause → Event → Consequence
Japanese forces at Salamaua and Lae considered the Australian base at Wau a strategic threat. To neutralize it, Japanese troops sailed from Rabaul, crossed the Solomon Sea under Allied air attack, landed at Lae, and began an overland march through difficult mountain terrain toward Wau.
A race unfolded between Japanese troops advancing overland and Australian forces reinforcing Wau by air. Despite weather hampering the airlift and terrain slowing the Japanese march, Australian defenders were substantially reinforced before the Japanese arrived. The Japanese achieved tactical surprise with an unexpected approach route but could not overcome the reinforced garrison.
The Japanese assault on Wau was repulsed, ending their overland push in that sector. The Australian position was secured, denying Japan the ability to neutralize this threat to their bases at Salamaua and Lae, and reinforcing Allied control of the interior of New Guinea.
Belligerents & Mobilization Analysis
Side A
1 belligerent
Side B
1 belligerent