Also I don't believe Russia has the technical ability to pull it off so professionally without strong proof being found by US.
Also even if we Europeans think it was the US we can't do much about it as we depend on US.
Yet nobody saw anything, there are no past records going few hours back of some ship sailing to those spots? I mean US can spot very shallow speed boats of cocaine smugglers for a long time, so they use submarines from what I gathered.
One explanation would be that submarine, but - if I would be doing marine defense, I would be pinging / doing some other equivalent of radar checks very frequently. But maybe this is really difficult to do due ie shape of sea bottom, reach of such pings, animal protections, just pure costs etc.
It must be "La Datcha".
With shells and missiles. Not with covert operations under NATO fleet's nose.
According to your premise, NATO knows who did it.
Talk me about investigative journalism.