John T. Bennett. Defense News, 27 January 2010.
http://www.defensenews.com/story.php?i=4473825&c=AME&s=TOP

Excerpt:

The new force-shaping model was derived from what the draft report calls the Pentagon’s four defense strategy priorities: “prevail in today’s wars; prevent and deter conflict; prepare to succeed in a wide range of contingencies; and preserve and enhance the force.” Sources say the priorities are known within the QDR process as “the Four Ps.”

The planning framework is designed to prepare U.S. forces to, according to the review, carry out “a broad, plausible range of several overlapping operations to prevent and deter conflict and, if necessary, to defend the United States, its allies and partners, selected critical infrastructure, and other national interests.”