TROJAN SPIRIT

TROJAN SPIRIT is a communications system operated by U.S. military intelligence, which is approved for handling information of the highest security levels. While the compartmented control system information it handles is principally for intelligence (i.e., TOP SECRET sensitive compartmented intelligence (TS/SCI), it can also be used for the most sensitive command and operations information, at the collateral TOP SECRET level and above.

It is a tactical network that allows sharing of this information among appropriate elements in the field, but also provides connectivity to worldwide maximum security networks such as JWICS and specific United States intelligence community networks. While it is tactically used, however, there is a TROJAN Data Network (TDN) operations center at Ft. Belvoir, VA.

Its implementation is evolving as part of the restructuring of the United States Army. Within a division, before the full change to Brigade Combat Teams BCT, there are 17 points that need TS/SCI access. It is expected there will be three such points per BCT.

Implementation
Originally, each TROJAN SPIRIT node had its own AN/TSQ-190(V) satellite terminal; TROJAN SPIRIT had often been considered synonymous with the combination of satellite and ground communications & security equipment. With the availability of the Joint Network Node, there would still be a satellite terminal per BCT, but other users in "TS/SCI enclaves" would reach it using secure tunneling through the Joint Network Node. TS/SCI communications require KG-175 tactical fastlane (TACLANE) in-line network encryption (INE) devices.