Defense Department officials may need to rework the structure
              of the military to meet additional homeland defense missions,
              according to a new report by the General Accounting Office.
              
              
The 1878 Posse Comitatus Act, enacted to preclude federal
              troops from doing the bidding of local politicians in the occupied
              South following the Civil War, prohibits the military from
              conducting domestic law enforcement operations. But the law also
              allows Congress and the president to make exceptions, and after
              the Sept. 11 attacks the Defense Department picked up extra
              responsibilities focused on preventing future domestic terrorist
              attacks. This led to the creation of the Northern Command, an
              organization that consolidates all existing military homeland
              defense and homeland security operations. Bush administration
              officials also developed the National Strategy for Homeland
              Security, which broadly outlines the Defense Department's role in
              supporting homeland security efforts.
              
              
But despite the plan and the new organization, U.S. military
              forces remain poised for overseas combat and the existing
              structure may overtax military personnel, reduce training levels
              and threaten readiness levels, GAO concluded in its report (03-670).
              For example, four Army military police combat units guarding
              federal installations could not complete required training for
              battlefield conditions, and Air Force fighter units assigned to
              combat air patrols were unable to complete required tactical
              maneuvers because of homeland security-related responsibilities.
              “DoD has not evaluated or adjusted its force structure to perform
              these missions,” GAO found in its review. “Some forces are
              generally not well-tailored to perform domestic military
missions.”
              
              
Also, operations both at home and abroad are causing stress in
              the forces, the report said. During a Senate hearing in the weeks
              before the war in Iraq, all of
              the military leaders acknowledged that military troops were
              stressed by increasing operational demands. In the months
              since September 2001, Defense officials have issued 23 “stop loss”
              orders, which ban military personnel from leaving their services
              by suspending normal separations and retirements.
              
              
“Military force readiness may erode and future personnel
              retention problems may develop, if action is not taken to address
              these problems,” the GAO report concluded. It recommended that
              Defense Secretary Donald Rumsfeld “assess domestic military
              mission requirements and determine if steps should be taken to
              structure U.S. forces to better accomplish domestic military
              missions while maintaining proficiency for overseas combat
              missions.”
              
              
In a written response, Paul McHale, Defense assistant secretary
              for homeland defense, said that a force structure study was
              already under way.