The Battle of Tarakan was the opening operation of the 1945 Borneo campaign, though its primary objective, the airfield, proved unusable due to pre-invasion damage.
Key Facts
- Landing date
- 1 May 1945
- Allied ground force
- Australian 26th Brigade + Netherlands East Indies contingent
- Main objective
- Capture and develop Tarakan's airfield
- Japanese resistance ended
- Mid-June 1945
- Campaign stage
- First stage of the Borneo Campaign
By the Numbers
Location
Cause → Event → Consequence
The Allies identified Tarakan's airfield as a strategic asset needed to support further offensive operations across Borneo. After weeks of preparatory air and naval bombardments intended to soften Japanese defenses, Allied planners launched an amphibious assault on the island in early May 1945.
On 1 May 1945, Australian and Netherlands East Indies forces conducted an amphibious landing on the south-west coast of Tarakan. Japanese defenders, having anticipated the attack, withdrew inland to fortified positions. Australian troops, backed by Australian and US air support, fought several weeks of difficult combat before securing the island by mid-June 1945.
The pre-invasion bombardments so severely damaged Tarakan's airfield that it could not be made operational until the final phase of the Borneo Campaign. This rendered the battle's primary strategic objective unachievable in time to benefit the broader campaign, and the operation is widely judged to have failed to justify the costs incurred by the Allies.
Belligerents & Mobilization Analysis
Side A
2 belligerents
Side B
1 belligerent