AEROOT was the cryptonym for an early CIA Cold War Foreign Intelligence (FI) project involving Estonia and Estonian nationals of the USSR. Below is a look at the 1957 project renewal request:
28 June 1957
The attached project, originating in the Soviet/Russia Division, provided for the utilization of all practicable channels of communication with the Estonian SSR to develop, recruit, establish and direct legal resident agents to collect operational and positive intelligence information.
The original AEROOT Project was approved on 13 May 1953 under Basic Plan AEBASIN and continued using renewals and extensions until 31 October 1956. The renewal request for 1 November 1956 through 31 March 1958 included the following Summary of accomplishments from 5 April 1955 to 1 November 1956:
· Recruited two Soviet Estonian residents as informers.
· Detected and followed up three Russian Intelligence Service (RIS) agents from Estonian SSR in cooperation with Swedish and British intelligence services.
· Interrogated and caused confessions of two RIS agents from Estonian SSR.
· Spotted one Principal/Agent candidate for work in cooperation with Finnish Intelligence Service.
· Recruited one agent for a repatriation mission to Estonian SSR.
· Recruited a merchant seaman qualified to visit Soviet ports.
· Recruited two mail drops for Secret/Writing correspondence with the Estonian SSR.
· Detected RIS control of a Swedish IS agent in Estonian SSR, with whom we also were in
unilateral communication.
The objectives of the AEROOT project were:
1. Establish several legal resident agents in Estonian SSR.
2. Utilize all practicable channels of communication between Estonian SSR and the Western World to develop, recruit and direct legal resident agents.
3. Spot, recruit, brief, and, when practicable, train legal travelers between Estonian SSR and the West.
4. Extract operational and positive intelligence information from visitors to and from Estonian SSE, one-time Estonian-resident Volks-Deutsche Prisoners of War clean and unclean escapees from Estonian SSR.
The following agent personnel, carried in Project AEROOT in the past, were terminated:
a. Hanks Augusti Toomla, was dispatched to Estonia in the spring of 1954. He lost his life apparently while in Soviet hands. Payment of death benefits to his heirs, provided in his contract with the Agency, is pending settlement of his estate.
b. Kalja Nikolai Kukk was dispatched into Estonia with Toomla. It was reported he was captured by HIS forces in the spring of 1954. According to a Soviet announcement, he was tried by a Soviet military tribunal in 1955. He is now presumed to be dead. His contract with the Agency provides for payment of death benefits to his designated heirs upon settlement of his estate


