“ Show me where the NATO charter allows member states to supply military weapons to a non-member state engaged in a border war with another non-member state.”
Your irrationality is striking.
Does NATO have authority over the activities of the sovereign member states?
Do you think NATO charter is a higher authority than the US Constitution or the laws of any other member state?
You don’t even make a rational argument.
you didn’t answer the question; on what authority is NATO defending/supplying weapons and men to Ukraine? Be specific.