Nadal became the new president of the Rand Protectorate on Tegalus following the civil war and the defeat of the fundamentalist rebels.

When a Prior of the Ori visited the planet, President Nadal openly embraced the way of Origin. The Prior offered schematics of a sophisticated satellite weapon that would assure Rand's superiority over the neighboring Caledonia and Nadal readily accepted the guarantee of world domination. When Senator Jared Kane feared a return to global war and sought SG-1's help to destroy the weapon, he and Dr. Daniel Jackson were both arrested and charged with treason and detained for trial as enemies of the state.

His fear of Caledonia bordering on paranoia, Nadal believed Kane's betrayal proved that he was cooperating with a network of Caledonian spies.

Angered and threatened by SG-1's interference, Nadal gave the order that destroyed the ship Prometheus using the new satellite weapon, and he prepared to destroy the Caledonian capital city. However, his military commander, Goran Pernaux, finally recognized Nadal's madness and countermanded the order. Pernaux shot and killed Nadal, and he took Nadal's place as the president of the Rand Protectorate. (SG1: "Ethon")


Extremely paranoid, Nadal had a deep distrust of anyone associated with the Rand Protectorate's enemies, Caledonia. He was also very power-hungry, displaying something of a strong, almost overwhelming loyalty to the Ori as well as a belief that the Rand Protectorate would emerge victorious.

Nadal was merciless which was seen when he ordered the Prometheus to be attacked twice and in quick succession and also when he ignored Colonel Lionel Pendergast's request for surrender.

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