Peninsula Campaign, a two-part series discussing the Union's first attempt to capture the Confederate capital in Richmond, Va., during the spring and summer of 1862. Part I - Beginning to Seven Pines and Part II - Seven Days Battles and Conclusion. It was the largest campaign of the American civil war. Nearly 250,000 soldiers were involved on land, at sea and in the air. More participants than any other single campaign of the civil war. About one in four of those were killed, captured or missing. There is no estimate on the number of war materials consumed. It was a remarkable logistical achievement to transfer men, horses, guns, ammunition and food to support the campaign. New technologies were introduced including ironclad ships, balloons and telegraphy connecting units on the battlefield. The battle was costly, saw the rise of one great general and the fall of another and changed the course of history.