NEW : Iraq says Iraq needs to take responsibility for its sovereignty . NEW : Obama thanks troops for giving Obama the chance to `` stand on its own '' Obama arrived in Europe last week for a series of summits . Poll shows only 35 percent of American feel Obama improving Obama image abroad .
NEW : Obama says Iraq needs to take responsibility for its sovereignty . NEW : Obama thanks troops for giving Iraq the chance to `` stand on its own '' Obama arrived in Europe last week for a series of summits . Poll shows 79 percent of Americans feel Obama improving U.S. image abroad .