|Operation Poisoned Dart Frog|
|Part of Pacific War|
|Commanders and leaders|
|25px Leslie Morshead||Hogo Takanawa|
|135,000 troops||150,000 troops|
|Casualties and losses|
|21,000 killed or wounded||50,000 killed/missing
The Allies landed in Borneo in early July 1945, and took over most of the island by the start of August. Following the fall of this Japanese stronghold, the Allies planned out the invasion of Borneo. The Australian 5th Army would land in the northern islands, and liberate the cities there. Meanwhile, the Dutch 2nd Armored Division, the US 150th Infantry Division, and the British 17th Infantry Division would land in the southern Celebes and take over the areas there.
The Australians quickly took over the beachheads in North Celebes, but as the Japanese retreated further inland, the resistance stiffened, and the Australians suffered a heavy toll of losses. Meanwhile, the Dutch tanks were useful in liberating the cities and towns, but their role was negated when the Japanese retreated into the impassible jungles. The Americans and British took over South Celebes, after using flamethrowers to burn the Japanese out of their tropical defensive positions. The natural defenses provided a brilliant asset for Japanese snipers and IJA machine-gunners, and they inflicted heavy casualties on the Americans and British as well. However, by August 11, the Allies from the north and south linked up, and fanned out into the island, taking out the last Japanese airfields and bunkers. On August 15, Hogo Takanawa surrendered the IJA 61st Army to the Allies, ending the operation.