alternatehistory.com

I was told that in the 1960s before the September Movement in 1965, the Indonesian Communist Party was the largest outside China and the USSR. So what if instead of involved in the Movement, the PKI decided to take power legally through general election?
What would a communist Indonesia? What about the other political movements (the Islamic and nationalist)?

And how would this affect the balance of the Cold War and the survivability of the Soviet Union?
Would this Indonesia be hostile to Australia?
I guess they would get nukes soon.
Thanks in advance!
Top