The Battle of Borneo was a significant military engagement during World War II, occurring in 1945. It involved Allied forces, primarily from the United States and Australia, fighting against the Japanese Imperial Army. The battle aimed to liberate the island of Borneo from Japanese occupation, which had begun in 1941. The battle included several key operations, such as the landings at Tarakan, Balikpapan, and Labuan. These operations were part of a broader strategy to secure vital resources and establish bases for further advances in the Pacific. The successful Allied campaign contributed to the eventual defeat of Japan in the war.