The present invention relates to a method and system for mission planning. The method comprises the steps of: —providing (805) information related to a target scene, said information comprising information related to a plurality of targets, —providing (810) information related to a plurality of resources for target attack, —determining (820) at least one possible attack direction against each target, —determining (830) a target effect associated to attacking the target from each of said determined at least one possible attack direction for each target, —forming (840) a network of possible routes between the targets for the resources, wherein the possible routes are determined based on the possible attack directions related to each target, and —forming (845) the mission plan for fighting the targets based on the determined target effects from the respective attack directions and based on the formed network of possible routes, wherein each target is fighted a predetermined amount of times.