Being completely anti-war is what has led Europe to this very moment in history.
Any sane person wants a world without war, but that's not possible. Not now, not in the future.
Europe right now is in a direct conflict with Russia, the defeat of Ukraine would be the defeat of Europe as well. And the only acceptable way to end this conflict is with a Russian defeat. Putin can't get away with it again. The Western alliance has to show that our enemies can't cross a line without suffering humiliation, otherwise Taiwan comes next and then the next World War.
And yes, that means many Ukrainians will die for this cause. I wish it wouldn't be the case, but that's what you get when a nuclear power attacks a non-nuclear power. NATO can't end it directly, which I am quiet sure they would be able to with air support in Ukraine because the Russian army wouldn't stand a chance, but that's not possible due to the nuclear threat. So it has to be won with the hard way for Ukraine.
And as for Europe, instead of the continuous anti-war bullshit, we need an actual strong, united European army. We can't rely on the US forever, who knows when the next Trump (or just Trump again) comes along. This must be the conflict and the time that the EU and its nations realize that we need to be always prepared to be able to protect ourselves and the silly assumption that we are invincible has to stop. We are vulnerable without a strong European army, our peaceful ways are only possible to maintain with a strong defence.