The Battle of Midway has gone down in history as a key turning point in the Pacific Campaign of the Second World War. In June 1942, the US Navy outthought, outflanked and overwhelmed the formidable Imperial Japanese forces thanks largely to the work of pioneering codebreakers.

Japan's first-line carrier strength was obliterated as well as a huge percentage of the country's highly-trained pilots, either of which were easily replaceable. But just how did the Americans find themselves in such a remarkable position, harnessing the element of surprise to devastating effect?

In this episode James is joined by award-winning historian Dr Sarah-Louise Miller, who reveals the forgotten history of the intelligence battle that set up a decisive victory at Midway.

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