John Brennan says elite Quds Force leader Qassem Suleimani has been �very aggressive and active� in advising Shiite militias against Islamic State

The role of the leader of Iran�s elite Quds Force in directing Iraqi forces against theIslamic State is complicating the US mission against terrorism and contributing to destabilization in Iraq, the director of the CIA said Sunday.

The comments by John Brennan on Fox News Sunday are among the strongest yet voiced by American officials about the involvement of shadowy Gen. Qassem Suleimani in the war against the extremist group.

Brennan described Suleimani as being �very aggressive and active� as he advises Shiite militias battling the extremists, mostly recently in the ongoing offensive targeting Tikrit, Saddam Hussein�s hometown.

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