Carol Berger
before you ask "How could Red Army had gotten to a position to strip them of their arms" or something, in 1939 Soviet Union demanded military bases in Baltics, and because of sheer size and strenght of Soviet Union they agreed, most likely because of fear of war they could not take, only few months later it was shown that Red Army was not as strong as it seemed, but it was already too late; Red Army was in Baltics, and in May came Soviet Ultimatum for Latvia, in June for Lithuania and Estonia.