THE United States imposed sanctions on three companies linked to the warring parties in Sudan, the latest in a series of measures against Sudanese entities aimed at stemming a devastating nine-month war. The businesses sanctioned are Alkhaleej Bank and Al-Fakher Advanced Works, controlled by the paramilitary Rapid Support Forces, and Zadna International, controlled by the Sudanese army, according to a U.S. Treasury Department statement. War broke out last April between the two forces, resulting in the devastation of wide swaths of the country, the killing of thousands of civilians, warnings of famine and the world's largest internal displacement crisis. The…