Military communications or military signals involve all aspects of communications, or conveyance of information, by armed forces. Examples from Jane's Military Communications include text, audio, facsimile, tactical ground-based communications, naval signalling, terrestrial microwave, tropospheric scatter, satellite communications systems and equipment, surveillance and signal analysis, security, direction finding and jamming. The most urgent purposes are to communicate information to commanders and orders from them.
United States Army Signal Corps switchboard operators in the 1940s
A Japanese courier pursued by Cossacks during the Russo-Japanese War, 1904
WRNS signalwomen training naval signalling, 1943
A Luftwaffe officer using a radio kit on a Panzer III, 1940
A military, also known collectively as an armed forces, are a heavily armed, highly organized force primarily intended for warfare. Militaries are typically authorized and maintained by a sovereign state, with their members identifiable by a distinct military uniform. They may consist of one or more military branches such as an army, navy, air force, space force, marines, or coast guard. The main task of a military is usually defined as defence of their state and its interests against external armed threats.
NATO military ceremony in Pabrade, Lithuania, November 2014
Relief scene of Roman legionaries marching, from the Column of Marcus Aurelius, Rome, Italy, 2nd century AD
Depiction of ancient Egyptian military formation
Finnish and American soldiers training together in arctic conditions in Lapland, Finland, January 6–16, 2015