The four were sentenced to prison terms ranging between 6 and 10 years. They were seized in different parts of Iraq and charged with entering Iraq illegally and possessing arms. The Iraqi government has accused Iraq's neighbors, notably Iran and Syria, of allowing gunmen to cross into Iraq to fight U.S.-led multinational troops and Iraqi forces.On Thursday, Iraqi security forces raided a hideout for insurgents in eastern Baghdad, killing one and capturing nine, including four Arabs.