(EST PUB DATE) THE CLANDESTINE SERVICE HISTORICAL SERIES: THE ILLEGAL BORDER-CROSSING PROGRAM 1946 - 1959

pproved for Release: 2025/04/21 CO1356489 _Seeret�f CIA Intornal Use Only Access Controlled by DDP CIA HISTORICAL STAFF The Clandestine Service Historical Series THE ILLEGAL BORDER-CROSSING PROGRAM 1946 - 1959 CS HP HP 098 Controlled by: SB July 1971 Copy 2 of 2 Approved for Release: 2025/04/21 C01356489 Approved for Release: 2025/04/21 C01356489 based personnel during 1947 and 1948. The. Ryabov Case Of interest, however, is one case which appar- ently had no CI ramifications, and which was a ha...