Pulling from the very pages of Hezbollah’s own news website itself, Muqtada al-Sadr recently sent a delegation to visit a Lebanese prisoner in Baghdad named Ali Moussa Daqdouq. The US arrested him in 2007 and obtained a confession he was training fighters inside Iran to fight in Iraq. In February, it was reported the US wanted to try him and extradite him from Iraq.
There hasn’t been much other evidence that Hezbollah is active in Iraq, but what does exist is substantive. There’s even less about what that might mean in the long term. What is suspected of Daqdouq is he was recruiting and training for Asa’ib Ahl al-Haqq (AAH), responsible for over 6,000 attacks on American soldiers. Hezbollah was apparently operating under the supervision of the Iranian Al-Quds force, and not the leader of training.
Hezbollah is a small organization heavily dependent on outside aid to function. Some have said Hezbollah is sending arms to Syria to aid its crackdown, but that seems unnecessary considering the larger resources available to the Syrian army. Hezbollah’s involvement in Iraq might indicate it has some decent relationship with other parties there, but it is not as important as Iran’s influence in Baghdad. Hezbollah might have little impact on Iraq nowadays with slightly more stability and a heavily Shiite Iraqi military fighting Sunni insurgents and no US soldiers to attack.