This article is a few days old, but I think it’s still interesting. The Polish Deputy Minister for Defence said this:

Today I wouldn’t even set a deadline anymore. Even some large-scale provocation by the Kremlin could quite plausibly happen within a matter of months.

Will Russia attack or sabotage NATO more than it is already doing? I hope not, but there have been indications in the news recently that such things could happen soon.

I found this article after googling, because this guy’s comments were referred to in another article today about the Russian government’s anger towards the UK.