Book excerpt: Daniel Crofts examines Unionists in three pivotal southern states--Virginia, North Carolina, and Tennessee--and shows why the outbreak of the war enabled the Confederacy to gain the allegiance of these essential, if ambivalent, governments. "Crofts's study focuses on Virginia, North Carolina, and Tennessee, but it includes analyses of the North and Deep South as well. As a result, his volume presents the views of all parties to the sectional conflict and offers a vivid portrait of the interaction between them.--American Historical Review "Refocuses our attention on an important but surprisingly neglected group--the Unionists of the upper South during the secession crisis, who have been too readily ignored by other historians.--Journal of Southern History