The modern battlefield demands rapid information access to support the effective application of tactical forces. A key element in this process is the collection, analysis, and dissemination of intelligence. To meet these needs, there is increasing use of automation systems in support of the intelligence staff. The traditional approach, relying on system isolation, to insure protection of highly sensitive information, has failed to meet operational needs. The USMC has an urgent requirement to address this deficiency. Amphibious operations demand a highly responsive intelligence system. At the same time, the variety of senstive data sources employed places a premium on protection from information compromise. To address these needs, specification of a baseline, system level, approach to providing a multilevel secure intelligence automation capability for the MTACCs is proposed. This system will take advantage of recent advances in information security technology and available commercial components.