Defense officials have started work on a new, senior-level guidance document for irregular warfare that is expected to replace a 2005 landmark directive on stability operations, according to a Defense Department spokesman. Deputy Secretary Gordon England recently tasked Michael Vickers, the assistant secretary of defense for special operations, low-intensity conflict and interdependent capabilities, to lead work on the new document, DOD spokesman Cdr. Robert Mehal said today in response to questions submitted by InsideDefense.com . The "comprehensive" document will spell...