What Hitler Knew is a fascinating study of how the climate of fear in Nazi Germany affected Hitler's advisers and shaped the decision making process. It explores the key foreign policy decisions from the Nazi seizure of power up to the hours before the outbreak of World War II. Zachary Shore argues persuasively that the tense environment led the diplomats to a nearly obsessive control over the "information arsenal" in a desperate battle to defend their positions and to safeguard their lives. Unlike previous studies, this book draws the reader into the diplomats' darker world, and...

More than two thousand years ago the Chinese strategist Sun Tzu advised us to know our enemies. The question has always been how. In A Sense of the Enemy, the historian Zachary Shore demonstrates that leaders can best understand an opponent not simply from his pattern of past behavior, but from his behavior at pattern breaks. Meaningful pattern breaks occur during dramatic deviations from the routine, when the enemy imposes costs upon himself. It's at these unexpected moments, Shore explains, that successful leaders can learn what makes their rivals truly tick.

Shore presents a...