So literally just like Cuba? The distance between US and Cuba is like 150km, if you're in Donetsk you can't even leave Donetsk Oblast if you travel 150km, and the shortest distance you can take from Ukraine<>Russia to closest EU/NATO member would be something like 600km if you don't take shortcuts via Belarus.
For all intents and purposes, Ukraine's border with Russia is way further away (like magnitude) from EU/NATO than US<>Russia (who are neighbors) or US<>Cuba (who are also neighbors).
So literally just like Cuba? The distance between US and Cuba is like 150km, if you're in Donetsk you can't even leave Donetsk Oblast if you travel 150km, and the shortest distance you can take from Ukraine<>Russia to closest EU/NATO member would be something like 600km if you don't take shortcuts via Belarus.
For all intents and purposes, Ukraine's border with Russia is way further away (like magnitude) from EU/NATO than US<>Russia (who are neighbors) or US<>Cuba (who are also neighbors).