For destruction of the race of men
It's victory is at hand"
"There will be no dawn for men"
spare civilian population and property. Neither the civilian population as such nor civilian persons shall be the
object of attack. Attacks shall be directed solely against military objectives. ''
Fundamental rule of the International Humanitarian Law
"I have witnessed this army [Israeli, addition Astrid Essed] demolishing, shooting and humiliating people whom I did not know… It hurts me when people, Palestinians, are being so brutally assaulted, and it hurts me when they later turn their hatred towards me because of it. I wasn't born to serve as a soldier who occupies another… My responsibility is to refuse."
Raz Bar-David Varon, Israeli teenager, who refuses to serve in the Israeli army
Witnesses, living in Gaza and Palestinian newsmedia have testified, that one of those air-attacks took place, when the children were from school on their way home, with as consequences a great number of dead and wounded children. 
''JUSTIFICATION'' BY THE ISRAELI AUTHORITIES:
The Israeli authorities are justifying the largescale attacks on Gaza with the argument, that the ''terroristic Hamas attacks on Israeli civilian goals must be stopped''
Further it is evident, that the attacker alone [in casu the Israeli army] is responsible for the consequences of the attack and not the other party to the conflict, in casu Hamas.
According to International Humanitarian Law, it is a fundamental principle, that in an armed conflict, at all times distinction must be made between combatants [military and fighters] and non-combatants [civilians]
As being commented before, each military attacker has the responsibility to protect the civilian population against the consequences of his attacks, as well regarding the choice of the attacking-location, as in the choice of arms [anti-personnel weapons are not permitted in a civilian area]
ABOUT MILITARY ATTACKS, THE BLOCKADE OF GAZA, HOUSE-DEMOLITIONS AND EXTRAJUDICIAL EXECUTIONS:
Like any other occupation in the world. of course this occupation has led to oppression, humiliations and hige human rights violations
- Ewa Jasiewicz (Polish and British) Free Gaza Movement
See 4th Geneva Convention:
The Hague Convention 1907