An important principle of the Defense in Depth strategy is that achieving Information assurance requires a balanced focus on three primary elements: People, Technology and defense of the environment

DiD - Defense in Depth

The Defense in Depth strategy is defined and mandated by Army Regulation 525-3, titled "Antiterrorism." This regulation provides guidelines and procedures for implementing antiterrorism measures, including the Defense in Depth strategy, to protect Army personnel, facilities, and resources from the threat of terrorism.

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