Hezbollah's Syria intervention.
Hezbollah announced that one of its top military leaders, Mustafa Badr al-Din, was killed in an explosion in the Damascus area on May 10. Badr al-Din, who reportedly oversaw Hezbollah's military operations in Syria, is the highest-ranking Hezbollah to be killed in Syria since its intervention in support of the Assad regime began in earnest in 2012.
Hezbollah's military capabilities will help ensure the Assad regime's survival.
Its relationship with its Shia support base in Lebanon will come under further strain.
Hezbollah's dominance in Lebanon is contingent on having an allied or non-hostile regime in Syria.
If Hezbollah's position in Syria were to become untenable, it would likely lose its military and political dominance in Lebanon.
