Hence @Twinz is correct in that you don't understand the difference between the two. Israel's goals are threefold:
1. Destroy Hamas;
2. Destroy the military complex underground and hidden in amongst the civilian infrastructure; and
3. Minimise civilian casualties but not at the expense of Israeli casualties.
Point 3 above is what I am saying should be key to Israel’s strategy. Some on this thread and more importantly key Israeli personnel were declaring they would leave no building standing. So I was not talking about what they are doing now, but what some wanted them to do purely as revenge. Some were also justifying it (on this thread) with utter nonsense about all Palestinians being Hamas and thus legitimate targets.