Ok Nevilve 'The appeaser' Chamberlain. please read more about the pre war years, the spanish civil war, the bavarian soviet republic etc, before attempting to debate this topic with any authority

Stalin’s Failed Alliance The Struggle for Collective Security, 1936–1939

https://utppublishing.com/doi/book/10.3138/9781487553470#%3A%7E%3Atext=In+the+spring+of+1936%2Cstop+Nazi+aggression+in+Europe.

In he spring of 1936, the Soviet effort to build an anti-Nazi alliance was failing. Stalin continued nevertheless to support diplomatic efforts to stop Nazi aggression in Europe. In Stalin’s Failed Alliance, the sequel to Stalin’s Gamble, Michael Jabara Carley continues his re-evaluation of European diplomacy during the critical events between May 1936 and August 1939.

This narrative history examines the great crises of the pre-war period – the Spanish Civil War, Anschluss, and Munich accords – as well as both the last Soviet efforts to organize an anti-Nazi alliance in the spring–summer of 1939 and Moscow’s shocking volte-face, the signature of the Nazi-Soviet non-aggression pact.