Date Brief Description Format
1 February SIGINT report on Cuban pilot training in Czechoslovakia (1 page) PDF
10 April Soviet merchant ship Nikolaj Burdenko delivers military cargo to Cuba (2 pages) PDF
23 May Operators' chatter reveals Cuban air force personnel to learn Russian (5 pages) PDF
18 June Radar being installed; possible for use with artillery units (4 pages) PDF
19 June Spanish-Speaking pilots training at Trencin Airfield, Czechoslovakia, on 31 May 1961 (1 page) PDF
19 June SIGINT report on Cuban pilot training in Czechoslovakia (1 page) PDF
30 June Soviet freighters scheduled to call Cuba in July 1961 (1 page) PDF

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