Of course any people has the right to defend itself. In this case however, Israelis under Netanyahu have played the role of provocateur in a region that is meta-stable under the best of circumstances. By assassinating the Hamas military commander, the Israeli's chose to throw a match into the tinderbox. For the sake of revenge,they have caused the death of dozens of innocents on both sides and have not enhanced the security of the Israeli people one iota. This is classic ultra-conservative strategy, fear-mongering and all war all the time- it keeps the people under control for the benefit of a few power hungry leaders.
Israeli forces demolish illegal houses, power infrastructure in Palestinian village Aqaba (Haaretz)
from the article: For Israel’s PR war on Gaza, it may be all downhill from here