The WHCA only provides compensation for injuries (or detention) that arise from war-risk hazards. Thus, it is important to know what the federal government considers a war-risk hazard. The WHCA defines a war-risk hazard as any hazard that arises during an armed conflict between the United States and any other hostile forces. Whether or not there has been an official declaration of war from either side is not relevant in defining a war-risk hazard.