Time period: 1945-75
Nuclear Weapons do NOT exist in this scenario but all other science/tech does
Round 1: USA vs USSR both at peak power. All other countries neutral. Can either side score a decisive military victory over the other
Round 2: NATO vs Warsaw Pact. Same conditions. Can either side score a decisive military victory over the other
Round 3: All American allies ever, vs all Soviet allies ever including China, in world war. Can either side win decisively?
Although the conditions are military victory, assume economic measures such as naval blocades etc are applicable, as well cutting off trade/ economic isolation in all except first Round
Basically if there were all out war instead of proxies, with full and fit forces (so assume not after effects of WW2) but minus nuclear weapons, would the outcome of the Cold War be different?