I understand the party wanted to defend itself from foreign interference, something Ukraine was not able to do despite uniting with other eastern-european nations for defense. I see this as the main reason why we need socialist states before organizing the conditions for communism to happen.

How would you see such a large scale defense playing out in an anarchist society? I ask this with political interference, soft power and propaganda also in mind.

Would the USSR have survived for as long as it did if didnt have Ukraine as a "buffer zone" and a more centralized, hierarchical military? Are there anarchist answers to this?