It’s https://digitallibrary.un.org/record/3951466?ln=en “Combating glorification of Nazism, neo-Nazism and other practices that contribute to fuelling contemporary forms of racism, racial discrimination, xenophobia and related intolerance”. The US always complains that Russia is trying to use it as a gotcha against the US You can find the US’s rebuttal on the state department website or somewhere like that and it includes reasoning such as that Nazis get to have free speech in the US.