<p>Defense Secretary Donald H. Rumsfeld has ordered the Army, Air Force, Navy and Marines to draft plans for a sweeping restructuring of the 900,000-strong National Guard and reserve forces.</p>
<p>In a July 9 memo to the four service secretaries and the Joint Chiefs of Staff chairman, Mr. Rumsfeld said he wants to reduce the need for calling up large numbers of reservists in a war and to do away with it altogether in the first 15 days of a crisis. He also does not want any unit called up for more than one year in any six years.</p>