quickly which is optimal and the idea, but uncertain. If Israel can roll up Hezbollah up to the Litani in 72 hours, maybe. And that just refers to Hezbollah and its missiles and their ability to launch them. The ground war won't be a problem for the IDF, but the underground part is dicey. No doubt that there are now all kinds of interesting IDF systems for use underground.
Law expanding definition of terrorist activity passes first Knesset reading (Haaretz)