Despite Jugoslavia's westward drift since the break with Moscow in 1948, Mr. White, who is well acquainted with Eastern Europe, is dead set against the Tito régime--its origins, its character, and its probable utility to the United States--and argues his case vigorously and often angrily. The author is, however, presenting a case, and his book provides little new information serving to clarify the more debated issues in recent Jugoslav history.