Long but worthwhile, Weinberg shows how te foreign policy of a dictatorship can be altered by the whims of the dictator. The most fascinating chapter was on Sino-German relations. Not only did Nazi Germany have a healthy trade relationship with China, but German military advisors and aid were crucial to the guiding of National Chinese military forces. But because Hitler and Ribbentrop favored the Japanese, Nazi Germany terminated the relationship which profited Germany. Essential for diplomatic historians.