Acting Deputy Defense Secretary Gordon England signed a long-awaited directive on stability operations this week, handing the under secretary of defense for policy far-reaching powers to shape the Pentagon's approach to stabilizing and rebuilding failed or failing states. Earlier drafts of the paper, dubbed "Directive 3000," gave the Army the lead for the mission, but the final version, dated Nov. 28, makes no mention of the service playing a leading role. The document assigns a wide range of responsibilities across...