The United States has expanded its air campaign in Iraq, striking Islamic State targets near the strategic Mosul Dam for a third day Monday and using land-based bombers.

More than half of the 68 airstrikes the U.S. has conducted over Iraq since President Barack Obama authorized them Aug. 7 have been around the dam in support of Iraqi forces, according to U.S. Central Command. Fifteen of these were on Monday; 14 were on Sunday.

With the help of U.S. firepower Kurdish and Iraqi forces had largely regained control of the Mosul Dam, Iraqi officials said, cited by The Associated press. The Islamic State on Monday, however, disputed those claims. […]