WASHINGTON (AP) — The Pentagon said Friday it was moving to increase the number of American troops in Iraq amid new strikes this week that killed the Islamic State's finance minister and other senior leaders. Still, top U.S. defense officials say the deaths won't "break the back" of the extremist group, which is in a fierce fight for an ancient city in Syria and claimed responsibility for bombing a soccer stadium in Iraq.Defense Secretary Ash Carter said the U.S.