Ch. 1. U.S. COMINT, 1939-1945
ch. 2. The first year of the war
ch. 3. Army-Navy policy and organizational development during 1943
ch. 4. The Army-British COMINT agreements of 1943 : the ENIGMA crisis
ch. 5. British-U.S. Navy COMINT agreements of 1943-1944
ch. 6. Continued jurisdictional problems regarding clandestine communications
ch. 7. The Army and Navy move toward full cooperation, 1944-1945
ch. 8. Internal Army and Navy organizational developments, 1944-1945.