# Correspondence Network **Domain:** Communications / Commerce / Intelligence History **Doc Type:** Concept Node **Maturity:** Developed ## Definition **A correspondence network is a durable web of letters, couriers, agents, addresses, introductions, and trusted recipients through which information and instructions move.** Before electronic communications, correspondence networks were shared infrastructure for commerce, family life, diplomacy, journalism, and intelligence. ## War With Empire Context The revolutionary Atlantic operated through overlapping correspondence systems rather than isolated national channels. A merchant letter could carry market information, a clerical letter could certify character, and a private introduction could create access unavailable to formal diplomacy. The strategic issue is not that all correspondence was covert, but that clandestine statecraft could travel through an already functioning social medium. ## Boundary Network membership does not establish knowledge of every message or purpose. [[wiki/Compartmentation|Compartmentation]] can allow ordinary and clandestine traffic to share infrastructure without sharing awareness. ## Key Insight **Intelligence often travels through communication systems built for ordinary trust.** ## See Also [[wiki/Human Infrastructure|Human Infrastructure]] · [[wiki/Tradecraft|Tradecraft]] · [[wiki/Kinship Network|Kinship Network]] · [[wiki/Operational Graph|Operational Graph]]