Nato leaders agree not to mention World Cup to Donald Trump to avoid irritating him
(www.theguardian.com)
Here's the thing, barring a nuclear weapon I think Poland or Finland all by themselves could take Russia and there's no one else really threatening Europe at the moment.
Trump also doesn't respect placation, it just invites him to go harder. What he does respect is popularity and violence. He's cool with Mamdani because the mayor is popular, he's deferential to Putin because Putin projects violence.