The Hizbullah chief's pronouncement violates Lebanon's dissociation policy and has unsettled the country's Shia community.
The IRGC's elite Quds Force has dispatched a senior officer -- Hassan Moezzi -- to co-ordinate the delivery of lethal weapons to the Houthis in Yemen.
The State Department on Wednesday released a report that highlights Iran's attempts to foment instability, and the new threat posed by terror groups such as ISIS and al-Qaeda.
A drone strike Sunday targeted Ali Shana, one of the earliest al-Qaeda leaders in the province, and three of his companions.
Attacks on security installations and personnel affect everyone in the province, by stalling reconstruction and public services projects.
The group's supporters and sympathisers have been feuding online, trading accusations of betrayal and collaboration on social media.
Machine-gun wielding militants killed five members of the security forces who were manning a checkpoint in the province's Ahwar district.
Iran's relationship with al-Qaeda began during the Osama bin Laden era and continued after his death with the hosting of his family.
In his first message in almost a year, the shadowy ISIS leader attempts to rally his scattered followers and reassert his leadership.
The Zainabiyat battalion, based on an Iranian model, was formed to support the militia and help it hold onto the areas under its control.