He was one of the best, Airborne, proud to serve his country and fight its toughest war--in the hell that was Vietnam. Known to all as "Fitz," Signal Corps officer David Fitz-Enz served two tours in Vietnam. He was a soldier, combat photographer, and platoon leader, fighting America's cruelest war--from the VC-infested rice paddies of the Mekong Delta to the dreaded Ia Drang Valley, where the enemy ruled the night. Dispensing with traditional, sluggish chains of command, the Signal Corps developed a rapid-response system based on greater flexibility, cutting-edge communications technology, and interdependence between the branches of the military during the war. Now commanders in the field were able to call in artillery, air strikes, and reinforcements at a moment's notice. Fitz-Enz himself orchestrated the first-ever hook up over tactical systems between the President in the Oval Office and a general in the Vietnam jungle. The only book of its kind, WHY A SOLDIER? gives us the inside view of the Corps as it launched an exciting new era in strategic and tactical communications that set the groundwork for all future military operations.