"nuclear weapons have prevented continuation of WW2"
I would tend to agree with that. However, the levels of weaponry that were deployed were arguably far higher than was actually required to achieve effective mutual deterrence - by a huge factor. If you actually read the details of what would have happened if the Cuban Missile Crisis or Able Archer 83 had ended as shooting wars then prepare to have your blood run cold and we did get very close to indeed to shooting wars - particularly in the case of Cuba.
Somewhat ironically, given that I am British, a child of the 70s/80s and not a Conservative, one of the actual heroes of the Cold War was actually Reagan - not for his "Evil Empire" rhetoric but because he actually had the decency to believe that your average Soviet citizen was just as decent as your average America, Brit or German. He was, by all accounts, so shocked when he heared intelligence reports of how terrified the Soviet leadership were of a possible NATO first strike that he deciced to open up a dialogue with the Soviets. For most of the Cold War it was the Soviets who were afraid of NATO - perhaps justifiably so as I am not aware of any military leaders in the Warsaw Pact who actively tried to start a nuclear war, which is not something we can say about the West.
One thing to note about this drama, where over 90% of the UK population are eventually killed, is that it is based on an official exercise called Square Leg that was generally regarded as being rather optimistic, a real attack by the Soviets would probably have been far worse:
The Soviets had pledged not to be the first side to use nukes. The US did not reciprocate, because the Warsaw Pact could have overwhelmed NATO forces in Europe with their conventional forces (or so everyone thought), so the US wanted to reserve the ability to use nukes in a counterattack.
> the levels of weaponry that were deployed were arguably far higher than was actually required to achieve effective mutual deterrence
Hindsight is always perfect. You build a larger than required stockpile of weapons because you don't know if the other side will be able to shot your weapons down.
> one of the actual heroes of the Cold War was actually Reagan
The Soviet Union was already crumbling due to the financial pressure required to maintain their deterrence. The dialog that was started at that time prevented a very dangerous situation that could result in a nuclear strike by either side.
IIRC, the Soviet Union didn't test their first bomb until 1949, well after the war ended. Are you suggesting that the Soviets stopped their advance because of the American bomb?
Edit: Oh, I just noticed the bit in your comment about the 1950s/60s. So your contention is that the war might have reignited had there been no atomic bomb?
Stalin's and Communist Party's goal was to "free the world of capitalist oppression", had US not had built a Nuke, Russians would not have stopped at Berlin.
The Russians were hit hard in WW2 but still in 1945 they were in far better position than any other Eurasian state. They would have swept over Europe in a single campaign if they could. And even Americans would be hard pressed at stopping them, without the nuclear weapons since US would be heavily tied in pacific dealing with Japan. And it wouldn't take a strategic genius to fathom an alliance between Japan and USSR, Soviets take the Europe, Japanese take the Asia.
Don't forget that in 1945 Russians were already all over Germany, they took Vienna, Yugoslavia was under their direct influence. Without US and their display of might in Pacific, there would be nothing preventing them from taking the Europe, and Stalin knew it.
That's probably why Soviets kinda kept a low profile for until the 1949.
Thanks for the reply. I always thought the Russians had been lost more people, materiel, etc. than anyone else and were pretty much done in by the end of the war. (I'm not sure where I got that idea, now that I examine it.)
The Russians indeed lost more people and material than anyone else.
The weird fact is that they lost 26 million due to military, but they lost 10 million to their own internal political oppression.
In either case, USSR had 200 million population in June 1941. At the end of 1945 the population was 170 million[1]. So they still had "plenty" of manpower left.
Also material losses were indeed huge, but mostly because complete disregard for safety of personnel and equipment. They could always replenish their losses at faster rate than their enemies (USSR had vast industry and material base), very inefficient but still huge.
For example. Germans built 6500 JU-87 Stuka assault planes[2] during whole war. Soviets have build 43.000 IL-2 Sturmovik assault planes from 1942-1945[3]. Since Germans had air superiority on eastern front, Soviets would just send in Sturmovik's without air cover.
There's an expression here in eastern Europe for overwhelming numbers, in literal translation it would go something as: "There is as many of them as Russians".
Just wanted to point out that world of geopolitics and strategy is way more nuanced than an average person believes.