You ask what would happen if Israel is weak, and Syria/Hezbollah are immensely stronger. It is a hollow question, because Israel is not weak, and Syria/Hezbollah do not hold a vast military advantage. The equation is simple, and it has been set out very well in this article: Israel is militarily strong, and has become SO used to its military strength that it has a tendency to see force as its first response to its arab neighbors. And what Shohat asks is a very pertinent question: what if force doesn't do any good? What if driving your army towards Damascus makes no difference *at* *all* to the situation that Israel faces, except that it delays the inevitable diplomatic maneouvres for a few more months or years? What good will that have done? I think the answer is "no good at all" and Shohat is correct; just pretend the war has already been fought and go straight to the negotiating table. After all, it's not as if you don't know what the price will be.
U.S. confirms ISIS computer expert killed in air strike (Reuters)
from the article: A war in the summer?