The Battle of the Wilderness, May 5-6, 1864 Fought in a tangled forest fringing the south bank of the Rapidan River, the Battle of the Wilderness marked the initial engagement in the climactic months of the Civil War in Virginia, and the first encounter between Ulysses S. Grant and Robert E. Lee. Gordon C. Rhea, in his exhaustive study The Battle of the Wilderness, provides the consummate recounting of that conflict of May 5 and 6, 1864, wh... Full description