Do a majority workers in Finland belong to a Union if one is available ofr their position ?
Shachtman and Burnham , especially after witnessing the Nazi - Soviet pact of 1939 and the invasions of Poland , Latvia , Lithuania , and Estonia by Joseph Stalin 's regime , as well as the Soviet invasion of Finland in November 1939 , came to contend that the USSR was a new form of imperialistic class society and was thus not worthy of even critical support from the socialist movement .