Definition
Command, Control, Communications, Computers, and Intelligence. The nervous system of modern military operations—without it, your army becomes very confused and violent.
Example Usage
The new C4I system improved coordination between all operational units by 40%.
Origin
Military information systems doctrine, formalized 1970s-1980s
Fun Fact
Cyberattacks targeting C4I infrastructure are considered existential threats in modern warfare.
Source: NATO Defense Communications Doctrine
Related Terms
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