They are bluffing and have been since the Crimea takeover in 2014.
Like many, I'm certain you too are not aware that Russia has had on average around 100k of their troops along the border since 2014 so nothing new.
Russia has a point re nATO
In Ukraine and other small, similar countries there are many that are pro-Russian and have lots of internal unrest just like Irleland.
It's politics on all sides and sadly the locals lose their homes, limbs and or their lives.
Politicians are renowned for starting wars when they are in trouble at home and that is a FACT
Was there any real need to move staff out of embassies as nothing new has really happened
Worse still, one of our politicians said a few weeks ago that the "UK would not internvene directly"!!
Then the USA the clown there gave the Russians a good as a green light for an "incursion,"
then over the last few weeks both countries have been citing an attack anytime now.
The fact is war has been going on there since 2014 and to me it looks as though the UK and USA
are making things worse - just watch what the leaders of Ukraine are saying it's different from our jokers.