Just wrote a report about Sheikh Akram Kaabi and his Hezbollah al-Nujaba group. Kaabi was a student of Ayatollah Sadiq al-Sadr, then became a military commander within the Mahdi Army under the son Moqtada. In 2004 after battles of Najaf Iran said that it was ready to fully support Sadr in his fight against the U.S. and they created Asaib Ahl Al-Haq as a secret cell of the Sadr movement. Iran eventually grew tired of working with Sadr seeing him as too difficult and encouraged AAH to break away which happened in 2008. Kaabi went with AAH and became a top leader in that organization. When Syrian war started Kaabi created Hezbollah al-Nujaba which he claims is an independent organization but appears to still be part of AAH like AAH was secretly still part of the Sadr movement originally. Kaabi openly praises his ties to Iran, attacks the U.S. threatening to target their aircraft in Iraq, and says he believes in vilyat al faqih. Read more here.