66 CIC

The 66th Counter Intelligence Corps (CIC) was a U.S. Army intelligence unit active during and after World War II. Established as part of the larger CIC organization, the 66th CIC Detachment supported the 66th Infantry Division, focusing on counterespionage, security screening, and protection against sabotage in the European Theater. Following the war, the unit participated in occupation duties in Germany, conducting investigations, vetting German personnel, and monitoring for subversive activities. The 66th CIC’s efforts contributed significantly to the security and intelligence operations of U.S. forces during a critical period in European history.