Citing 'rebel' sources, Reuters says that the strikes targeted a facility used to store weapons and munitions used by Hezbollah and other Iranian-backed militias. 

According to Haaretz, these forces are "engaged in some of the toughest fronts against Syrian rebels".

In other words: Israel just destroyed weapons and munitions that are being used to fight jihadists who have terrorized Syria for the last six years. 

Nothing new, of course. Israel has a long, proud history of ignoring ISIS/Al Qaeda targets, and choosing instead to drop bombs on forces that are actually fighting terrorists in Syria: