Re: Defending the continent against potential Russian aggression
I don't know if you'd noticed, but we're in this alliance thing. It's called OTAN or NATO or something. It's got lots of countries who do feel threatened by the great bare-chested one. Including the afore-mentioned Poland and particularly the Baltic States. Where the RAF and army are currently deployed - though so far the bare-chested one has only deployed cyber warfare and a bit of propoganda.
So there is a need for NATO countries to modernise their forces, yes. Or admit that they no longer stand behind their military guarantee.