Mideast edition, Thursday, August 14, 2008 ARLINGTON, Va. — President Bush has ordered the U.S. military to begin a humanitarian mission in Georgia. "This mission will be vigorous and ongoing," Bush said Wednesday at the White House, adding that a U.S. C-17 aircraft with humanitarian supplies was on its way to Georgia. Russian troops and tanks invaded the country last week in response to a Georgian offensive intended to retake the breakaway province of South Ossetia. The Russian president later ordered Russian forces to halt their drive into Georgia, but it was unclear Wednesday whether Russian troops had moved further...