History's harsh indictment of Walter C. Short as commander of the Army's Hawaiian department is the result of a series of investigations that placed blame for the disaster on General Short and his Navy counterpart, Admiral Husband E. Kimmel. Over the years various books on Pearl Harbor have presented Short and Kimmel as either fools or scapegoats for Washington officials attempting to hide their own errors; in this long overdue first biography of Short, the general emerges as an honourable man who made some errors.

The late Charles Anderson, a long-time historian and Vietnam veteran, gives a balanced portrayal acknowledging that Short bore responsibility for certain charges made against him, but also providing ample evidence that Short's superiors worked hard to blame him and Kimmel as a way of avoiding their own culpability. Anderson's thorough research offers readers a new understanding of the larger issues involved, including the glaring lack of interdepartmental cooperation and coordination, particularly in regards to intelligence sharing. The study examines the general's entire career, placing Short in the context of the early 20th century Army, and describes his conduct in the face of blistering, often unfair, criticism in the years after the Japanese attack.

As the title suggests, a single day undid an exceptional career, but as readers discover it did not undo Short's personal sense of dignity, honesty, and loyalty to the institutions and leaders who shared responsibility for the debacle.

This biography is published in co-operation with the Association of the United States Army.