[4] Fratricide concerns began during the Persian Gulf War, when 35 American troops were killed by friendly fire.
During this period, soldiers often used low-tech methods to communicate, such as painting inverted "Vs" on allied vehicles or waving red-lensed flashlights.
[4] During operation, a millimeter wave beam was transmitted from the gunner's station, interrogating a potential target prior to firing.
A BCIS transponder automatically responded with a message, provided in the form of audio and visual signals to the interrogating gunner (i.e.
The study focused on ergonomic design of signals for quicker user guidance during emergency conditions.