without even commenting the evidence considered (mainly 'osint' claims) that ruling completely disregards the right of donbas to self-determination (wether organized or not). it was clearly a political ruling.
you know, as an european over sixty that actually voted to join the eu i have long learned that ... european courts are full of shit, as are most of the institutions of the "international rules based order" btw. i know, that's the best we have. which means we're fucked.
but funnily enough and back to the question: that ruling not even suggests the concepts of "invasion" and "territiorial gains".
https://hudoc.echr.coe.int/#{%22fulltext%22:[%22\%22Ukraine%...
one has to wonder... if donbas didn't really want to secede (or didn't know how), and it was all russian troops ... why would kiev shell residential areas in donetsk with massive civilian casualties in july of 2014? so they would actually have a reason to secede? doesn't that court full of shit have a case for that?