Marines faced off against insurgents in southern town of Barbara Starr . Marines surround compound , held fire because of civilians . The Marines ' restrained approach differs from previous hits on compounds when airstrikes were readily called in , the official said . six U.S. soldiers killed by roadside bomb in northern U.S. . NATO claim responsibility for attack on U.S. military vehicle .
Marines faced off against insurgents in southern town of Barbara Starr . Marines surround compound , held fire because of civilians . six U.S. soldiers killed by roadside bomb in northern U.S. . NATO claim responsibility for attack on U.S. military vehicle .