Tag Archives: Operation Sea Lion

My summer in Hitler’s Britain

For light summer reading in the Moravian countryside I grabbed an old copy of Len Deighton’s 1970s alternate history thriller SS-GB – a tale of cops and spies set in an alternative 1941, where a Nazi occupation regime is bedding in following a successful invasion in 1940 (warning: spoilers follow) and C.J. Sansom’s variation on  the same theme, Dominion, set in a parallel 1950s Britain where Churchill never made it to number ten and a government headed by Lord Halifax made a fateful peace deal with Hitler after the Fall of France.

To take the history first, the counter-factual premise of Deighton’s SS-GB is clearly the weaker. Most military historians – as well as German military planners of the period – agree that the projected Operation Sea Lion would have been impossible to successfully carry without both RAF and the Royal Navy being decisively knocked out – a task well beyond the Luftwaffe and the Kriegsmarine. A 1974 wargame played between British and West German staff officers suggested that, if attempted in September 1940, Sea Lion would have been a military disaster with German invading forces being forced back from their bridgeheads in little over a week, resulting in a Nazi ‘reverse Dunkirk’. Read More…