The US increased security at its Iraqi bases in response to threats by Iranian-backed terrorists, said Gen. Ray Odierno Tuesday.
Odierno, the top US general in Iraq, said the Iranian threat to US forces has increased as Tehran looks to boost its political and economic influence in Iraq in the face of a decreasing US military presence.
"There's a very consistent threat from Iranian surrogates operating in Iraq," and security has been stepped up at some US bases, Odierno told reporters in Baghdad.
He added that joint operations with Iraqi forces against suspected Iranian-sponsored insurgents have also been increased, while the scheduled withdrawal proceeds apace.
Though no attacks have yet occurred, said Odierno, there was credible intelligence some Iranian-backed groups were planning strikes on US forces.