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tactical cross domain solution (CDS)

Definitions:

  A CDS that operates in austere environment conditions or environments where terrestrial communications are not possible. Austere environment conditions include combat and intelligence, surveillance, and reconnaissance (ISR) land, sea, or air vehicles. Terrestrial communications include direct connection to a telecommunications provider via electrical or optical cables, or the use of microwave, radio, or satellite communications. CDSs used in safety-critical environments or CDSs used for direct connection between sensor and shooter (e.g., missile, gun) can also be categorized as tactical.
Sources:
CNSSI 4009-2022 from DISN Connection Process Guide - adapted