The Battle of Balikpapan was the concluding stage of the Borrieo campaign in 1945. The landings took place on 1 July 1945, when the Australian 7th Division, composed of the 18th, 21st and 25th Infantry Brigades with support troops, made an amphibious landing code named Operation Obbe Two a few miles north of Balikpapan on the island of Borneo. The landing had been preceded by heavy bombing and shelling by Australian and US air and naval forces. The Japanese were outnumbered and outgunned, but like in other battles of the Pacific War, many fought to the death. Major operations had ceased by July 21, and the 7th Division's casualties were significantly lighter than in previous campaigns. The battle was one of the last to occur in World War II, beginning a few weeks before the bombing of Hiroshima and Nagasaki effectively ended the war, and Japan surrendered while the Australians were combing the jungle for stragglers.