German troops enter Prague on 15 March 1939.
Following the German remilitarisation of the Rhineland in 1936, Germany's aggressive foreign policy in Europe led directly to the outbreak of the Second World War in 1939.
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- Adamthwaite, A.P., Making of the Second World War (London: George Allen and Unwin, 1979)
- Parker, R.A.C., Chamberlain and Appeasement: British Policy and the Coming of the Second World War (Basingstoke: Macmillan, 1993)