echelon-to-echelon communications system

area communications system

command communications system

communications and intelligence system

communications system

division communications system

NATO Integrated Communications System

satellite-based communications system (SATCOM)

tactical communications system

buried and hardened cable communications system

bell-ringer communications system

air traffic control communications system

fleet satellite communications system

data communications management system

satellite communications system (SATCOM)

aerial communications system

wideband communications system

seismic communications system

flash-type communications system

single-axis communications system

axis of signal communications type system

grid communications system

Target, Trigger, Location, Observer, Delivery system, Attack guidance, and Communications (TTLODAC)

grid system of communications

high command communications system

fire extinguishing system sprinkler system and fire alarm system

assault echelon

attack echelon

attacking echelon

brigades in echelon

echelon above corps (EAC)

echelon attack

echelon left / right formation