Incidentally, the apparent divergence between US and European interests is something we could well see mirrored in the UK.
The reason Russia promoted Brexit, and has seems to have developed ties with Reform UK (or at least, various of its members) is because straining relations between the UK and the EU further weakens NATO.
Quite where that would leave the UK in terms of national defence, who knows. I assume it would become even further dependent on the US, which might suit the US for strategic purposes, or might come at a price (likely in terms of trade).
Certainly a lot of "divide" going on, whether and to what extent the "conquer" happens, who knows.
I'm not meaning to re-litgate Brexit, by the way. European nations don't have to be in the EU to be aligned on defence but, if the goal is to ultimately drive a wedge between one nation and the rest of Europe in the area of national security, separating them fiscally and regulatory is likely the necessary first step (and the rest doesnt have to follow).
I'm not a Conservative voter but a Tory win has never made me fearful for the UK's longterm national security. On that front, the prospect of Reform win scares the crap out of me.