There are no guarantees that the UNIFIL soldiers in Lebanon — in charge of protecting the Blue Line along the Lebanese-Israeli border that was set according to UN Resolution 1701 — are safe from the repercussions of a potential US military strike on Syria, if such an operation were to expand. It should be noted in this regard that one of United Nations Interim Force in Lebanon's (UNIFIL) main forces is made up of French soldiers, who number over 800. Moreover, France is considered the most ardent supporter of US President Barack Obama’s military strike against the Syrian regime, while Hezbollah is the most zealous group in defending the persistence of this regime. The fact that UNIFIL’s region of operation is located in the stronghold of the popular base and the invisible military base of Hezbollah, means that France — which has a weighty presence in UNIFIL — and Hezbollah are united on one land. Consequently, questions about the possibility of smooth coexistence between them in south Lebanon are raised, in the event of the expansion of a US military strike.

On that note, there are concerns that Hezbollah would become a part of the military war if the scale of the US strike expands to topple the Syrian regime, instead of just punishing it with a limited strike. In this case, UNIFIL soldiers will become hostages of a front that could flare up at anytime between Hezbollah and Israel. It is not unlikely that Hezbollah would target French soldiers in UNIFIL, should the French government involve itself in an open war alongside the United States against the Syrian regime. There are bets in the West that Lebanon will stay impartial in the Gulf-French-US war on Syria. The odds of this happening are high if Iran and Hezbollah discover that the US strike is partial, and does not aim at toppling the regime. However, if the opposite is proven true, Hezbollah will most probably ignite things on the Lebanese front with Israel in the framework of a pressure tactic on the latter, so that it interferes and pushes Washington to stop the attack aimed at overthrowing President Bashar al-Assad.

There are scary scenarios being discussed in the security and political backstage in Beirut, including a war of missile strikes between Israeli and Lebanese cities — one that brings back to mind the war of cities between Iran and Iraq during the first Gulf War. Beyond that, sources close to Hezbollah have clarified to Al-Monitor that the party has big military surprises in store for this incident, dubbed by party leaders as “the big war.” They comprise launching operations to occupy settlements in the Galilee region close to the Lebanese border and taking its citizens hostage, not to mention dealing special security blows to the Israeli regions and using new qualitative weapons that Hezbollah has never used yet.

All evidence in Lebanon indicates that the party is preparing for a huge regional battle, which will be triggered by the US military strike. Were the latter to expand, it would ignite the situation in Syria’s neighboring countries. A source close to Hezbollah, speaking to Al-Monitor on condition of anonymity, said that the party will be able to estimate the extent of the operation’s goals during the first hours of a US strike. If the Americans and their allies attack limited and symbolic targets, this would mean that the war might not expand. However, if the first US strike hits strategic targets and is accompanied by military action by the Syrian opposition forces, this will be considered decisive evidence that Washington is embarking on a war to topple the Assad regime, thus “pushing the resistant axis to ignite on all fronts.”