Question: How many Estonians chose to retreat or flee when in anticipation of another Soviet invasion?
Sentence: In the face of the country being re-occupied by the Red Army, tens of thousands of Estonians (including a majority of the education, culture, science, political and social specialists) chose to either retreat with the Germans or flee to Finland or Sweden where they sought refuge in other western countries, often by refugee ships such as the SS Walnut.
Answer in sentence: yes