Complex sentence: King Haakon and the Norwegian government escaped to Rotherhithe, in London, and they supported the fight through inspirational radio speeches from London and by supporting clandestine military actions in Norway against the Nazis.
Split into simpler sentences: King Haakon and the Norwegian government escaped to Rotherhithe in London. Throughout the war they sent inspirational radio speeches and supported clandestine military actions in Norway against the Nazis.