NEW : Karzai says expected Washington offensive is not `` D-Day '' NEW : Karzai says issue of his brother has been resolved with United States . Karzai visits graves of United States soldiers at Arlington Cemetery . Meetings Tuesday have tried to play down tensions between Kandahar and Kabul .
NEW : Clinton says expected Kandahar offensive is not `` D-Day '' NEW : Karzai says issue of his brother has been resolved with United States . Karzai visits graves of U.S. soldiers at Arlington Cemetery . Meetings this week have tried to play down tensions between Washington and Kabul .