3net, the joint venture 24/7 3D network from Sony, Discovery and IMAX, is debuting the first 3D war docmentary, "Fields of Valor: The Civil War." The four-part 3net original miniseries brings to life the men of the 20th Massachusetts and the 1st Virginia as they leave their homes and loved ones, prepare for ensuing battle, complete with 3D recreations and graphic effects.