Boris Arkadyevich Yartsev

Борис Аркадьевич Рыбкин
Soviet Ukrainian Jewish 1899–1947 ✕ Killed in a disputed car crash

Risky diplomacy conducted behind an intelligence officer’s cover

In April 1938, he warned the Finnish side that Germany might attack Leningrad through Finland.

Boris Arkadyevich Rybkin was a Soviet intelligence officer and diplomat who operated in Finland under the name Yartsev. In 1938 he opened secret negotiations, framed as an effort to prevent a German threat to Finland, but Soviet demands for territorial concessions produced no agreement. The failed contact marked the first step in a Soviet-Finnish sequence shaped by negotiation, security fears and mistrust that led to the Winter War.

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