The moment the first Chinese satellite crashed into another, America invoked Article 4 of the NATO treaty and called for an immediate emergency meeting. At that meeting, they planned to push for using Article 5 to declare Eden a belligerent nation that attacked a NATO member, thus allowing them to invade without an issue.
At the meeting, the American representative presented a video recording of their interrogation of the recently captured Kim Jong-Un, in which he denied responsibility for the initial round of bombardment that targeted Seoul and blamed the entire thing on Eden. Once they saw that, the invocation of Article 5 was unanimously approved, and NATO began working on an invasion plan.
But there was still work to be done on the home front for both America and Russia.