"Perhaps the biggest difference in the fighting between the two world wars lay in the invention of the man-portable radio that allowed for a greater degree of tactical coordination than ever before. Gordon L. Rottman provides an informative study of the use of small radios, field telephones, signal flares and ground-to-air signaling that revolutionized the battlefield"--Publisher's description.

Means of tactical communications. Field telephones -- Radios -- Visual signals : flare and smoke projectiles -- Smoke grenades and candles -- Signal flags -- Marker panels -- Signal lights -- Arm and hand signals -- Messengers -- Audible signals -- Unit communications equipment. United States -- Britain and Empire/Commonwealth -- Soviet Union -- Germany -- Japan -- Communications procedures. Phonetic alphabets -- Morse code -- Times and dates -- Documents : security classifications -- Message precedence -- message center operations -- Communications countermeasures -- Signal units. Divisional units -- Infantry regimental and battalion signal elements : United States -- Britain and Commonwealth -- Soviet Union -- Germany -- Japan -- Unit Communication systems.