'Troubled Refuge: Struggling for Freedom in the Civil War'From the author of What This Cruel War Was Over, a vivid portrait of the Union armys escaped slave refugee camps and how they shaped the course of emancipation and citizenship in the United States. Even before shots were fired at Fort Sumter, slaves recognized that their bondage was at the root of the war they knew was coming, and they began running to the Union army. By the wars end, nearly half a million had taken refuge behind Union lines in