What principles determined the nature of Soviet foreign policy in the 1920s?

There are two main principles of Soviet foreign policy during the 20th century:

1) Establishment of economic relations between other European states;

2) The desire to spread the world revolution in countries, as well as to spread the principles of the proletariat.

We can say that if the first principle called for the destruction of economic isolation from the West and was based on the development of relationships, then the other principle called for the destruction of the very ideology of the West.