Indeed, and this is exactly what i was hinting at. There is a reason why the US insists on building bases so close to their adversaries, and why in turn this poses such a large threat to those same adversaries.

If you get your missile interceptors or even just your radars stationed close enough to the enemy borders you may be able to negate their nuclear deterrent, which is an existential threat for a nation that relies on nuclear deterrence because then mutual destruction is no longer assured.

Moreover this massively increases the risk of nuclear conflict because then the country that has managed to negate its principal opponent's nuclear arsenal is incentivized to launch a nuclear first strike asap as they may not have this same window of opportunity later. Luckily the US can't do this to Russia no matter what because Russia still has nuclear submarines.