Iran sends fighters, so far without success
Assad must decide: Whom does he fear more
Alternatively, if he fears Israel more, he may refrain from permitting an Iranian presence, knowing Israel will strike any attempts at entrenchment, further weakening his regime. It is likely that the IDF will target any initial signs of Iranian establishment soon. Additional measures are expected to make it harder for Sunni jihadist rebels to establish themselves too close to Israeli communities in the Golan Heights.