Ukraine was literally betrayed by NATO and the US. They gave up their nukes in the 90s (the third largest stockpile) as they believed in the US and NATO.
Had Ukraine retained their nukes or had NATO accepted Ukraine as a new member, none of this would’ve happened.
Doesn’t it say a lot about Russia that after all that betrayal, Ukraine still wants to join NATO rather than it’s “brotherly nation” Russia.
Doesn’t it highlight clearly how aggressive Russia is.