so that medical and health services can efficiently be delivered to victims who can receive supports and supplies in the aftermath of natural disasters. To support such a decisionmaking operation, it is important for military researchers to develop a geo-data analytical methodology that is reliable and useful for the operation. The main challenge in such a methodology is how to expressively and efficiently represent, manipulate, and analyze those unified geo-data objects in such a way that domain experts, e.g., military units, can analytically make a concerted action together. This is exactly the focus of this paper.