Topaz by Leon Uris 

An original thriller about the Cuban Missile Crisis.  The name of the French President is a thinly veiled characterization of De Gaulle, but he was not the President in charge during the time of the story.  It boasts a medium sized cast of a Soviet defector and his wife and daughter, a French secret-service agent, his wife and daughter and his lover in Cuba, high-ranking Cuban officials and American agents interviewing the defector and using the French secret serviceman to get confirmation of Soviet missiles in Cuba.  The story delves deeply into the pressures on family life in these roles.

The book was made into a movie by Alfred Hitchcock.