Resolutions of the Security Council might violate rules of dispositive law and thos of peremptory nature as well. States being convinced that the Security Council disregards peremptory norms of international law and, therefore, taking the position to the not obliged to respect these resolutions, are under the duty to inform the Security Council about their scruples. they ahve to warn the Security Council before, unilaterally, acting against the order of a resolution.