The very core of the Navy's transformation is Sea Power 21. The Navy is making a major effort to create a new maritime strategy, to be formally completed in June. Perhaps it is also necessary to refocus, modify and refine its Sea Power 21 concept. Unveiled in June 2002 by former Chief of Naval Operations Adm. Vern Clark, this vision for the 21st century was subsequently explained in more detail in "Naval Transformation Roadmap 2003: Assured Access & Power Projection ... From the Sea" and in a series of subsequent articles written by several high-ranking officials, mostly published in the Naval Institute's Proceedings.

http://www.armedforcesjournal.com/2007/04/2578311