Where to place blame?

Breathe, breathe... sitting in the warmth of my room, satisfied after a hot meal...
I try to make sense of what´s going on in this WAR.. WAR? It´s a DEFENSIVE attack by Israel to protect its citizens from TERRORISM. Scenes of the 2000? Intifada come to mind - stones, stones against Merkava (God´s Chariot) tanks, one of the most developped in the world.
I´ve just listened to a comment by Dennis Kucinich on the arms export control act and the specific prohibitions of the use of these export weapons.. i hear the same arguments from both sides - who is to blame, disproportionate use of force, occupying power, right to defend its territory, Hamas willingly exposing the Gazans to fire and attacks by fabricating and using their rockets in heavily populated areas.. who is to blame, who is the guilty one, who are the victims... while the death toll has risen to about 700! Figures, oh, there are many... 14 dead from Hamas attacks in 7 years, thousands of Palestinians from Israeli attacks.. how many more must die before all this senseless killing must stop?
Who broke the ceasefire? I heard it was Israel when they bombed tunnels that were supposedly being dug into Israeli territory on November 4th. We heard it was Hamas who refused to renew the ceasefire after it expired...
and where does International Law come into play in all this? What about the many resolutions passed condemning Israeli actions... Will Israel be accounted for its actions?