I think we should be positive about the future of arms control efforts. It appears that the authorities will not allow the conflict to escalate to such an extent that the use of nuclear weapons is required. However, there are countries whose foreign policy relations cause attention. For example, India and Pakistan are of particular concern over their long history of hostilities, the lack of progress on territorial issues, and the continued rapid expansion of their nuclear arsenals.
Neither Russia, the United States, nor their allies want war, and they have no real political motives to unleash it. However, it should be remembered that in many conflicts of the past, both sides believed that they were only defending themselves, reflecting actual or probable aggression, even if they themselves were conducting offensive operations. This is how the First World War began in 1914, which determined the history of the 20th century. The world is still unraveling the consequences of this war.
The Cuban Missile Crisis of October 1962 clearly demonstrated that a nuclear war could begin because of the loss of control over events and not planned aggression. The situation in Syria is also fraught with dangerous consequences. And here, there is a danger of a direct armed clash between the two superpowers, which could immediately go beyond the borders of Syria and the entire region.
The development of a nuclear arms race will undoubtedly undermine the norms and regimes for the non-proliferation of nuclear weapons. Moreover, even if not a single bomb falls in one part of the world and a hundred in another, the climate will change throughout the planet, and life will not be the same for everyone. Numerous deaths of people, of course, are still the main reason why the authorities will try to avoid the assumption of a nuclear war.