Describes the activities of the Corps as a service and combat arm in the various theaters of operations. Describes the rapid expansion of the communications industry in close partnership with the Signal Corps and the race with the enemy to produce electronic weapons and counter-weapons.

1: Looking Toward the Theaters Of Combat -- Signal Corps Organization and Status, Mid-1943 -- Signal Corps Mission in the Theater of Operations -- Summary -- 2: The Signal Corps in Sicily And Italy -- The Signal Section, AFHQ -- The Sicily Campaign -- The Italian Campaign -- 3: The Signal Corps in the ETO: To Mid-1944 -- Invasion Plans and Preparations -- The Invasion -- 4: The Signal Corps in the ETO: To V-E Day-I -- Signal Techniques With the Armies -- The Invasion of Southern France -- The Continental Communications System -- 5: The Signal Corps in the ETO: V-E Day-II -- Signal Supply Problems in the ETO -- Communications in the Ardennes Counteroffensive -- The Closing Months of the Campaign -- 6: The Signal Corps In The CBI -- CBI Signal Officers and Their Problems -- The Calcutta-Kunming Pole Line -- Combat Communications -- 7: The Signal Corps in the South And Central Pacific -- The South Pacific Area -- The Central Pacific Area -- 8: Communications in the Southwest Pacific: To Mid-1944 -- The Unique Over-all Control of the SWPA Signal Officer -- The Task Force Communications by Co-ordination -- The Signal Corps in Jungle Operations -- Radio Relay and Communications Ships to Hollandia -- Signal Supply From Australia to Jungle Beaches -- 9: Communications in the Pacific: To V-J Day -- Underground in the Philippine Islands -- Afloat and Ashore at Leyte and Luzon -- Okinawa to Tokyo -- 10: Electronic Combat: Countermeasures -- Radar and Radio Countermeasures, a New Arena of Conflict -- Organizing for RCM -- RCM Equipment and the Laboratories -- Some RCM Problems -- RCM Units on the Ground and Ferrets in the Air -- RCM in the Attack -- RCM for CROSSBOW -- RCM to the War's End -- The Signal Corps Restricted to Ground RCM -- RCM's status in 1945 -- 11: Signal Security and Intelligence -- Evolution and Development of the Signal Security Intelligence Activity -- Signal Security and Intelligence in World War II -- Signal Security and Intelligence Transferred to General Staff -- 12: Signal Corps Production at Full Tide -- Organizational Improvements -- Requirements -- The Effect of Overseas Procurement on Signal Corps Requirements -- Developments in Production Control Measures, 1944-45 -- The Crisis in Wire and Batteries: A Case Study in Supply -- Summary -- 13: Distributing Signal Supplies on a Worldwide Scale -- Storage Operations -- Stock Control Measures: Mid-1943 to 1945 -- Protecting and Maintaining Signal Equipment -- Evaluation and Summary -- 14: Equipment: The Laboratories - AAF Items and Their Transfer -- Cutbacks in Laboratory Personnel and Projects -- Equipment Problems -- Transfer of Communications Equipment Responsibilities to the AAF -- Signal Corps Research and Development at War's End -- 15: Equipment: Elaborations and Developments to V-J Day - A Few Examples - From Wire Equipment to Electronic Fuzes -- Missile Controls -- Meteorology -- Microwave Radars on the Ground, AN/CPS-1 and -6 and SCR-584 -- The SCR-584 Radar, VT Fuzes, and the Buzz Bomb -- SCR-584 Modifications -- Airborne Microwave Radars -- Radios -- Equipment Situation at the End of the War -- 16: Innovations in Signal Training -- Military Manpower -- Military Personnel Procurement, 1944-45 -- Training -- Summary -- 17: Army Photography at Home and Overseas -- The Army Pictorial Service Organization and Mission -- Problems of Policy and Production Control -- Motion Picture Services -- Still Pictures -- Photographic Equipment Supply and Research -- Photographic Troops -- Summary -- 18: Signaling the World -- ACAN Facilities and Techniques -- Telecommunication Group Conference Facilities -- Communications for VIP Conferences -- Expansion Through V-J Day -- Special Services -- The Around-the-World Belt Line -- 19: The Army Signal Situation at War's End -- OCSigO Organization in 1945 -- Some Continuing Questions of Mission -- Toward the Future: Shooting for the Moon -- In Retrospect: A Summary -- Appendix: Signal Corps Equipment, World War II -- Bibliographical Note -- List of Abbreviations -- Glossary -- Code Names -- Index.