Comintern emerged from a divide in the socialist Second International–the right, the centre and the left. The right in support of war efforts of the government; the centre who publicly denounced the nationalism of the right and had aims of unifying Second International, seeking world peace; the left who were led by Lenin, rejected nationalism and pacifism, instead promoting a socialist perspective in order to ‘’transform the war of nations into a transnational class war’’. Two years after the Russian revolution came the first congress of Comintern in Moscow. By the second congress, all parties were to expel pacifists as well as ‘moderate’ Socialists.
By 1928, under Stalin, comintern had taken on ‘’extreme leftism’’, where moderate socialists were seen as enemies of the state.
Comintern, in the 1930s, focused their attack on the social democrats in Germany, even going as extreme as cooperating with the Nazis, in order to bring down fascist uprising in Germany. Defeating the Weimar republic was the main goal. Alongside this, comintern had situated many spies nationally, retrieving and passing on information to the soviet union to aid them in the silent conflict against the west. For example, the Cambridge five, a ring of spies who were in favour of the ideology of communism, were based in the world’s greatest institution of education. This greatly increased tension as it made the west cautious and wary, even of its own people.