Complex sentence: He left that post to join CBS as a foreign correspondent, based in Paris; he broadcast the fall of Paris, and followed the French government from there to Bordeaux and then Vichy, before leaving France for London and finally Washington.
Split into simpler sentences: He left that post to join CBS as a foreign correspondent, based in Paris. He broadcast the fall of Paris and followed the French government from there to Bordeaux and then Vichy before he left France for London and finally Washington.