

Some of the first people to go in Nazi Germany were the Jewish German WW1 veterans. When a population is purportedly ‘weak’ and ‘incapable’, perhaps even ‘poisoning the nation’, the absolute worst thing you can have are patriotic members of that minority as living counterexamples.
That’s why for the fascist, they must go quickly and quietly so as to not undermine the message.





They threaten the UK, France, Germany, etc for their internal audience, not the external one. To a middle class Russian (the target audience), those are “the west”, great empires, powerful players in the great game of geopolitics. It’s an empty affirmation to Russian citizens that they’re still at the big boy table. It would look bad internally threatening “weak Poland” without following through.
That doesn’t change or connect at all with the actual danger of an invasion. Before the full-scale war with Ukraine, Russia was “trying to negotiate between Ukraine and separatists”, they weren’t saber rattling. They quietly put their troops on the border for a “training exercise”, denied they were preparing for an invasion despite the British screaming from the rooftops, and then went in.
Specifically about Latvia, Lithuania, Estonia: yes, they’re in more danger than Poland, but an attack on them would pull Poland in. Poland sees an attack on them to be fundamentally the same as an attack on Poland.