Was the USA already a superpower when it joined the Second World War? How did it turn from an isolationist nation to a force ready for action? 

Today Don is joined by Craig Nelson to find out how President Franklin D. Roosevelt manoeuvred the country from the isolationism of the interwar years to supplying an arsenal and, eventually, manpower to its European allies.

Craig's new book is 'V Is For Victory: Franklin Roosevelt's American Revolution and the Triumph of World War 2'.

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