"In the event of a surprise attack by the USSR"

I find it interesting that everyone always talks about surprise attacks by the USSR - in reality the USSR spent most of the Cold War terrified of a strike by its enemies (both the West and China). Indeed, as far as I know only one side in the Cold War had military leaders who wanted to start a nuclear war - guess which one?

NB The only possible exception to this was the Able Archer 83 incident when the Soviets thought the US was going to conduct a first strike ("Evil Empire" rhetoric etc.) and they almost pre-empted this with their own strike - but that was the terror of senile geriatrics, not a deliberate plan.