Passage: British Malaya quickly collapsed, shocking the Australian nation. British, Indian and Australian troops made a disorganised last stand at Singapore, before surrendering on 15 February 1942. Around 15,000 Australian soldiers became prisoners of war. Curtin predicted that the "battle for Australia" would now follow. On 19 February, Darwin suffered a devastating air raid, the first time the Australian mainland had ever been attacked by enemy forces. Over the following 19 months, Australia was attacked from the air almost 100 times.

Question: Roughly how many Australians were captured as prisoners of war in World War II?
15,000