Wouldnt say it was a band. Napoleon forced some of the germans, the others joined because they wanted to be on the winning side, and the poles fought with Bonaparte for their freedom
I know Charlemagne doesn't fit the definition of a Supergroup, but that's simply because when the term was coined, Christopher Lee hadn't joined any bands yet. So the creators of the term forgot to leave in the loophole that any band with Christopher Lee is also a Supergroup.
Good luck convincing our politicians not to start a war after giving Rheinmetall a taste of the 800bn budget for a project literally called REARM EUROPE.
Our politicians didn't start a war during the entirety of the Cold War, either. You might have succumbed to the fallacy of thinking that when a weapon is purchased it needs to be used to kill people.
Surely the European weapons and troops didn't kill anyone during the Vietnam war, or the Korean war, or in colonies in Africa such as Algeria, or in the Gulf war, or in Yugoslavia, or the bombing of Libya, or in Afghanistan, or in Iraq, or very recently in Gaza.
Oh sorry, forgot those don't count to you because they're brown people or Asians for the most part! Massacres and colonialism against defenceless people don't count as wars ;)