Abstract :
CIVIL DEFENSE REQUIRES communications for two principal reasons. First, to give the people advance warning of impending attacks. The high speeds of modern aircraft require that the communications for alerting must be rapid and reliable. Second, communications are needed by Civil Defense in fulfilling its responsibilities connected with fire fighting, rescue, medical needs, debris clearance, emergency repair of vital facilities, monitoring for specific hazards, and so forth. Communications are needed within cities, between cities in the same state, and on a nation-wide basis. In a real sense communications are the nerves of the Civil Defense effort.