“The foundations of world peace are strengthening among all the civilised countries of the world,” Churchill said, “but there is one country that is outside these considerations, and that is Russia. Russia is incalculable, aloof and malignant.

All that line of small new States from the Baltic to the Black Sea are in lively apprehension of Russia. Finland, Estonia, Lithuania, Latvia, Poland and Rumania – every one is in great fear and anxiety about its neighbour.

All are strongly anti-Communist. They have gone through great internal stress and tension, and they have built themselves up on a Radical, democratic antithesis to Communism.

https://winstonchurchill.org/publications/finest-hour/finest-hour-053/churchill-and-the-baltic-part-i-1918-1931/