Russia crossed the line on cluster munitions first.Err and this means what? That we are pro Russian and everything else doesn't count for anything?
Honestly I really don't know. If you look back just months ago, there were clear lines from our side that we wouldn't cross in order to stop perceived proxy war. Now we're giving jets, cluster munitions etc
My concern at some point is that we are going to push a thoroughly nasty man was prob always going to lose once he didn't seize it immediately like he thought he would.....into being able to convince his population back home that infact they are fighting NATO and that all options are on the table.
Let's take cluster munitions as an example, for better or worse they are now being used by a "good" side and thus its a line we cannot undo easily.
If this escalates further and we see the use of CBN weapons then either we accept its use and opens up for warfare....or we have to step in and then we have WWIII.
There is a line that I really think is going to be crossed, no side will want it and it will probably happen almost by accident. But we will find it very hard to walk away.
And yes, if Russia are the first to use nuclear weapons, they will be used in retaliation. Thats the entire point of MAD.