The Soviet leaders, with Joseph Stalin at helm, were convinced of the transience of the order negotiated in Versailles, which ended the First World War. The outbreak of another world war was most welcome for them because it opened the prospect of another chance for spreading the ideals of revolution on the effective path of military conquest. It was the foreign policy of the USSR that was subordinated to this, and not to world peace. This can be clearly seen in the involvement of the Soviets in the ongoing conflicts around the world - in China they did not hesitate to support the nationalists Chang Kai-Sek, in the Spanish civil war they became involved on the side of the left-wing republics. Using Comintern and local ideological communists for this purpose, they also developed an agency network through which they could influence public and political life in many countries. All of this was subordinated to one goal: to wage a world war in which the capitalist states would be worshipped and destroyed by years of warfare similar to that of 1914-1918, when they would not be able to resist the powerful Red Army which, like a conciliator, would resolve the aroused conflicts by introducing a peculiar Pax Sovietica.
At the same time, a wave of purges spread throughout the entire Soviet Union, involving party and military apparatus, and millions of ordinary citizens, including representatives of national minorities treated as potential agents in the event of conflict. The so-called Great Terror of the 1930s was characterised by an extremely high rate of capital punishment (almost 85% of all sentences) and almost blind cruelty. According to some Russian historians, it was supposed to purge the cadre and society of elements uncertain during the expected war, replacing them completely with a generation of the new Soviet man, Homo Sovieticus, obedient and faithful to Marxist ideology.
Lenin's death did not end the misery of people who came under the rule of the USSR, his place was taken by an even greater criminal - Stalin.
The civil war in Spain became a prelude to the future world conflict.