@Marduk is polish. His people jave more claims to Ukraine then the Ruskies.
But if you wanna talk about foreign interest taking border territory thay has historical ties? Kalinigrad sure hasn't been Russian for very long. I guess the Germans or even the Polish have full right to invade and take it back.
I guess Japan can invade the Kurill Islands. Taiwan should Imvade China. UK should invade India and Hong Kong. UK should invade Egypt........
The Ukrainains do not see themselves as Russians. They seem themselves as Ukrainains. That is like saying an American should see themselves as English because we were wondering an English colony...