Just recently Hezbollah was bragging that they have weapons that would probably guarantee them victory should they decide to engage Israel [in war]. Israel apparently doesn't want to wait to find out what weapons the militants have. The sooner they find out, the earlier they'll figure out how to defend themselves. I see this attack as a provocation to force Hezbollah to make a move.
An Israeli helicopter strike in Syria killed five Hezbollah fighters on Sunday, including the son of the group’s slain military commander, Imad Mughniyeh, Hezbollah said as a member briefed on the episode described the attack as a provocative move by Israel.
The attack threatened to rekindle fighting between Israel and Hezbollah, the Lebanese Shiite militant group and political party.