Saudi Arabia issued a royal pardon on Tuesday to all of its soldiers in Yemen, forgiving troops accused of committing abuses during the Saudi-led assault on Houthi rebels. The pardon came as Amnesty International accused the United Arab Emirates of torturing prisoners in a network of secret prisons in southern Yemen, calling for an international war crimes investigation. Amnesty investigators say they’ve uncovered evidence of widespread beatings, the use of electric shocks and sexual violence at the prisons. The UAE is a key ally of the United States and has partnered with Saudi Arabia in its military assault on Yemen, which has created the world’s worst humanitarian crisis, with a cholera epidemic that’s sickened more than a million people, and millions more pushed to the brink of famine.