Conversation so far:
When did Gomulka become first secretary of the United Workers' Party?
on 20 October the Central Committee brought Gomulka and several associates into the Politburo, removed others, and elected Gomulka as first secretary.
Are there any other interesting aspects about this article?
Gomulka was one of the key leaders of the Warsaw Pact and supported Poland's participation in the intervention in Czechoslovakia in August 1968.
What did Gomulka do as first secretary of the UWP?
believed that the alliance with the Soviet Union was the only thing stopping the threat of a future German invasion.
How did the alliance with the Soviet Union fare?
Khrushchev decided that Gomulka was a leader that Moscow could live with.
How do the USSR help Gomulka?
The German side recognized the post-World War II borders, which established a foundation for future peace, stability and cooperation in Central Europe.
What else can you say about the USSR at that time?
The Soviet leadership viewed events in Poland with alarm.

Question: Why did the Soviet leadership view events in Poland with alarm?
Self-contained rewrite: Why did the Soviet leadership view events in Poland with alarm?