The White House must spearhead an effort to "substantially increase" the permanent size of U.S. ground forces, according to a new report that calls for the immediate deployment of seven Army brigades and Marine regiments to Baghdad to tamp down the rising violence as part of a last-ditch effort to avoid defeat in Iraq. The report, prepared by Frederick Kagan, a military historian and resident scholar at the American Enterprise Institute, comes as President Bush weighs a new approach to...