SUDAN'S army warned of a risk of confrontation after mobilisations by a powerful paramilitary group, underlining growing strains between the rival forces and a potential complication in moves to restore civilian rule. It could spell prolonged strife across a vast country already dealing with economic breakdown and flare-ups of tribal violence. The mobilisation by the Rapid Support Forces (RSF) headed by General Mohamed Hamdan Dagalo represented a "clear violation of law," the army said in a rare comment on a dispute that has hampered a planned transition to democracy. "These movements and deployments happened without the agreement of the leadership of the…