The point of bringing up the treaty is just to point out that the result of the situation you are describing was so scary that for about 30 years the 2 biggest nuclear powers agreed not to do it. That is all to say that one answer to your question is " US and Russia pretty much saw your scenario resulting in inevitable full scale nuclear war"
The point of bringing up the treaty is just to point out that the result of the situation you are describing was so scary that for about 30 years the 2 biggest nuclear powers agreed not to do it. That is all to say that one answer to your question is " US and Russia pretty much saw your scenario resulting in inevitable full scale nuclear war"