Regarding Ukraine not seeking to invade Russia. Almost NOBODY seeks to invade Russia, because Russia has nothing that anyone wants that can't be obtained much more easily and cheaply by simply buying it. Furthermore, were one to invade Russia, you then become responsible for what happens in the epitome of shithole state.
Why would Finland want to assume responsibility for their former territories in Russia by invading? Finland would then be responsible for an area that is ruined by Russia, and even worse full of surly unproductive Russians.
Ukraine Fires First HIMARS on Russia´s Kursk Region, FSB Hit ( www.kyivpost.com )
US says Russia’s advance on Kharkiv is ‘all but over’ ( thehill.com )