This study proposes a theory of naval strategic planning for programming. It identifies and describes those factors which should influence how the Navy determines its future force requirements and eventual capabilities. The work is premised upon the following hypothesis: Within the context of national military strategy, naval long-range planning for future forces should be based on an in-depth understanding of three factors: (1) the future role of the sea in national military strategy; (2) the missions naval forces will be required to perform; and (3) future trends in naval warfare. The first task of planning is to guide the organization into an uncertain future. It must identify those factors which can be used to determine future requirements. The resultant concepts can then be further developed as required by the organization's overall needs. Strategic planning is first and foremost a frame of mind for conceptualizing those requirements. This study proposes a theory to establish that framework. Keywords: Naval planning; Military strategy; Theses. (sdw)