Final answer:
According to Article VI of the Articles of Confederation, The Congress has to authorize a non-defensive attack on a Tribal Nation.
Step-by-step explanation:
According to Article VI of the Articles of Confederation (1781), the governmental body that has to authorize a non-defensive attack on a Tribal Nation is The Congress. As the central governing body under the Articles of Confederation, The Congress had the power to declare war and make decisions related to foreign affairs.
Learn more about Articles of Confederation