By Dan Dupont / November 25, 2009 at 5:00 AM

A new version of the joint operating concept for irregular warfare is in the works and could be released as soon as next month, according to a document obtained by InsideDefense.com.

The current version, 1.0, is dated September 2007. And version 2.0 could be out in December, the document states -- but it could also slip as far as February.

Two key reviews are approaching. The first, slated for Dec. 19, is a meeting of the three-star service operations deputies. After that will be a senior-level Tank review, which is not yet scheduled, the document states.