Gen. David Petraeus’ assertions about falling casualties in Iraq are supported by a range of objective sources. But his testimony to Congress does not establish whether the decline is attributable to…

The U.S. military’s methodology for measuring violence in Iraq draws criticism from some quarters. The Pentagon concedes some kinds of violence don’t get included, but insists its consistent applic…

As military leaders in Washington revise their war strategy for Afghanistan, analysts say enlisting Afghan tribesmen could aid in security. Others warn that what helped stabilize Iraq may play very d…