Red Civil War

What if the Sino-Soviet border conflict in 1969 erupted into full-scale nuclear war?

1969
March: The Sino-Soviet border conflict begins with Chinese attacks on Zhenbao/Damansky Island. Chinese forces occupy the island following the Battle of Zhenbao Island.

August: 3 border incidents occur in the western Chinese province of Xinjiang/Sinkiang. The conflict finally escalates into full-scale war following the third incident at Tielieketi, on August 13, 1969. Nuclear missiles are launched by both sides, and America watches as the two most powerful communist nations begin to annihilate each other.

September: Cuba and the Warsaw Pact join the Soviet side of the war. Chinese nuclear missiles are not able to reach that far at the moment, but as the PLA advances into Soviet Siberia and Soviet Central Asia, they bring their missiles with them. So far, nuclear devastation is kept at a minimum since most missiles are shot down. However, things may not stay that way for long.

October: The Red Army is slowly pushed back by the PLA’s seemingly infinite amount of infantry.