In an effort to relieve the burden on his overextended armed forces in Iraq, President Bush placed a four-line classified ad in the Monday edition of 75 U.S. newspapers. 'WANTED: motivated, dedicated, obedient people looking for career in growing field of nation liberation,' the ad read. '90,000 jobs avail. F/T days, nights, weekends. No exp. necessary. Will train. Arabic a plus. Starter pay, solid bnfts.' To further boost military enlistment rates, Bush plans to post the job offer at employment offices in 300 cities across the country. 