Supreme command matters to a country at war. The supreme commander, typically a military
general, is charged with ultimate judgment authority and responsibility for a community’s strategic
performance in a conflict. Despite this clear importance, as Harvard’s Sarah Sewall has remarked,
“we lack the tools to judge military leadership.” Aside from uncritical biographies and battlefocused military histories, the supreme commander’s role has evaded serious academic scrutiny.
This historical study seeks to illuminate patterns in exemplary supreme command. It first
considers the topic’s importance, then consults the characteristics associated with superlative
supreme command, with particular focus on military theorist Carl von Clausewitz’s “military
genius” as an ideal type. It then tests the assembled characteristics through three in-depth case
studies using primary source records (e.g. dispatches and memoranda) as direct artifacts of
judgment to quantify and qualify contrasts between opposing supreme commanders. Later on, it
looks to formal, observable characteristics to enable comparisons among high-achieving supreme
commanders. This dissertation finds superior judgment, attended by a distinct sense of empathy and
grit, and accompanied by several other common characteristics, is what drives successful supreme
command. This finding held true across different conflicts, strategies, and other comparative
measures. This work concludes by thinking through the finding’s utility as well as pondering the
extent to which these traits can be learned through experience or education
