As it had become evident that the Aouzou Strip was being used by Libya as a base for deeper involvement in Chad, Malloum decided to bring the issue of the Strip's occupation before the UN and the Organisation of African Unity. Malloum also decided he needed new allies; he negotiated a formal alliance with Habré, the Khartoum Accord, in September. This accord was kept secret until 22 January, when a Fundamental Charter was signed, following which a National Union Government was formed on 29 August 1978 with Habré as Prime Minister. The Malloum-Habré accord was actively promoted by Sudan and Saudi Arabia, both of which feared a radical Chad controlled by Gaddafi. The two nations saw in Habré, with his good Muslim and anti-colonialialist credentials, the only chance to thwart Gaddafi's plans.