What is your position on the morality of obeying orders sending you to an illegal war? That's the gist of Watada's and Huet-Vaughn's justification for refusing to obey their orders. Don't they have the right to have the government prove the war is legal and that they won't be facing war crimes trials? If not, why not?
Depends on the details. Y9u are specifically declaring the war is illegal. In your question, why would a moral person participate? I will not be analyzing the detail of those cases. Suit yourself.