I think that neither side should be ‘allowed’ to attack another country

And neither is. Russia broke several international laws, including the Budapest Memorandum which it signed on its own free will. Ukraine is not attacking, it’s defending. Ukraine did not target anything that isn’t directly connected to Russia’s war effort. Military installations, military equipment factories, supply hubs, enlistment offices, and such are legitimate targets to defend itself. It’s like kicking the knife out of the hands of a robber.

And I would prefer a more de-escalating attitude from the green party member Baerbock.

Which kind of deescalation? The Georgia 2008 kind? The Crimea 2014 kind? The Hitler Appeasement kind?