In April 1938, NKVD agent Boris Yartsev contacted the Finnish Foreign Minister Rudolf Holsti and Prime Minister Aimo Cajander, stating that the Soviet Union did not trust Germany and that war was considered possible between the two countries.
En abril de 1938, o axente do NKVD Boris Yartsev contactou co ministro de asuntos exteriores finés Rudolf Holsti e co primeiro ministro Aimo Cajander, afirmando que a Unión Soviética non confiaba en Alemaña e que unha guerra entre os dous países era considerada posible.