> Wouldn’t it be more reasonable to Russia that the US is attacking NK and not just nuking Kamchatka?
I guess that depends on current relations between the two countries and assumes there wouldn't be a breakdown of communications when launches are detected.
> Can the trajectory of an ICBM be inferred by the height of it’s arc?
From the book I mentioned in another comment, Russia has very flawed satellite systems for tracking nuclear launches. There is a lot of focus on the fact that you don't have much time in the event of an imminent nuclear strike so I don't think there is much calculations being done if the missile is (generally) coming towards your homeland.
I guess that depends on current relations between the two countries and assumes there wouldn't be a breakdown of communications when launches are detected.
> Can the trajectory of an ICBM be inferred by the height of it’s arc?
From the book I mentioned in another comment, Russia has very flawed satellite systems for tracking nuclear launches. There is a lot of focus on the fact that you don't have much time in the event of an imminent nuclear strike so I don't think there is much calculations being done if the missile is (generally) coming towards your homeland.