213th signal detachment (crypto)

The 213th Signal Detachment (Crypto) was a specialized communications unit within the U.S. Army, tasked with handling secure communications and cryptographic operations. Activated during the Cold War era, the detachment played a crucial role in ensuring the confidentiality and integrity of sensitive military information in both field and garrison environments. The unit supported higher headquarters and subordinate units by operating and maintaining cryptographic equipment, training personnel in secure communications protocols, and safeguarding classified materials. Over its service, the 213th Signal Detachment contributed significantly to the Army’s intelligence and signal capabilities before being inactivated as technology and organizational structures evolved.