The army advanced rapidly.
After occupying Tarakan Island, as part of Operation Oboe One, the Third Reinforced Brigade landed in northern Borneo, heading straight for Sandakan, the capital of North Borneo for the past several decades.
Since this was a return to Borneo, retaking the capital was naturally imperative.
Moreover, Sandakan was Borneo's finest port, capable of accommodating ten-thousand-ton ships. Most importantly, of the local population of 150,000, 140,000 were overseas Chinese. If anywhere had a strong popular base, it was here.
