Mohammed Baqir al-Hakim
Safely in Iran, Al-Hakim became an open enemy of the Baathists, forming the Supreme Council of the Islamic Resistance in Iraq (SCIRI), a revolutionary group dedicated to overthrowing Saddam Hussein's regime.  In 1983, Hussein responded by arresting 125 members of Al-Hakim's family who had remained in Iraq, and executing 18 of them.  This further embittered Al-Hakim's view of the Baathists in general and Hussein in particular.  With Iranian aid, SCIRI became an armed resistance group, periodically making cross-border attacks on Iraqi facilities, maintaining covert connections with resistance elements within the country, and generally being a perennial thorn in Hussein's side.