Past
Edmond Burke once said “all that is necessary for evil to triumph, is for good men to do nothing.” As prevalent as periods of peace are, there are periods of war to maintain such peace; in periods of war, the necessity to transmit information efficiently, effectively, privately, and accurately is the difference between victory and defeat.
In ancient warfare, armies fighting on the battlefield by a series of banners, drum beats, smoke signals, and horns. In the armies of feudal Japan, warriors would have banners on poles attached to their backs signifying what position they were. Soldiers also carried flags in their hand, and by various waving patterns/positions, or certain faces of the flag, troops would know whether advance, send in the calvary, etc. In the Civil War, a bugle call was used to signal retreat, tracing its origins back to the Crusades. This way of transmitting information was not entirely effective because in the heat of battle soldiers could become disoriented and not register the signals being relayed, or a wrong note played or twitch in the arm could signal something that was not supposed to be so. Also, instant updates and