They are not terrorist attacks as sovereign nations cannot by definition commit terrorist attacks. These are acts of war and as Russia invaded Ukraine they are a response to Russian aggression.
“Yes it is - Russia peacefully took the land back in 2014 and now Ukraine and NATO are the bloodythirsty aggressors who have started a war there” - comments on lemmygrad, probably.
“This woman stabbed me with a knife while I was trying to push her down! Why does she get a pass while I’m the evil one for trying to force myself on her!?”