how israel reacts to attacks

[PokrLikeItsProse]

I don't think Israel wants Lebanon to have the resources to deal with Hezbollah.

1) They fear Hezbollah acquiring those resources, possibly even through electoral democratic means.
2) They prefer a weak power vacuum as a buffer region. Israel wants politically weak neighbors, but those are exactly the sorts of conditions that allow organizations like Hezbollah to flourish.
3) They want to remind the Palestinians that they will attack as relentlessly if Hamas does anything.