Since 7 October, questions have been posed over whether Hezbollah would intervene in the fight against Israel in aid of Hamas, and on the extent of Iran’s involvement in Hamas’s attack on Israel. Iran backs both Hamas and Hezbollah: they are military partners and have coordinated training and battles with support from the Islamic Revolutionary Guards Corps. Neither Hamas nor Hezbollah take decisions to declare war or peace without explicit prior agreement from Iran.
However, battles are not the same as full-on war. To date, Hamas and Hezbollah have never been involved in a war on two fronts against Israel. This is a scenario that neither the two groups nor Iran take lightly, because such a scenario amounts to regional war in the Middle East, which is in no one’s interest.