The Defense Mapping Agency (DMA) has developed World Geodetic System (WGS) 1984, and starting from its earlier versions, viz., WGS 60, WGS 66, and WGS 72, the latest system is a state‐of‐the‐art, accurately defined, global reference frame. In its development, full advantage was derived from the advancement in theory, recent sophistication in computer technology, and the availability of new and more extensive data sets.