In a resource war, there is typically a nation or group that controls the resource and an aggressor that wishes to seize control over said resource. This power dynamic between nations has been a significant underlying factor in conflicts since the late 19th century.
Earth minerals and metal ores, fossil fuels (coal, petroleum, natural gas) and groundwater in certain aquifers are all considered non-renewable resources.
Water has long been a source of tension and one of the causes for conflicts. Water conflicts arise for several reasons, including territorial disputes, a fight for resources, and strategic advantage.