Israel fears too much of losing it's soldiers, which is why it fails in these operations. The sole reason for rhetoric against Iran is not it getting a bomb, they have that already, tested in n-Korea years ago, but to lose the power in the region. A mere threat is enough, as there is no place to go for israelis, unlike Iranians and other arabs in case of total war.
In three days, Greek coastguard rescues 2,500 migrants (Reuters)
from the article: A plea to Israel from the right: End the Gaza war now