Israel launched the offensive in late December to take on militants from Hamas , who had been shelling southern Israeli communities for months from Gaza . Israel 's use of phosphorus shells over during Gaza offensive `` indiscriminate '' Human Rights Watch says shelling `` evidence of war crimes '' UN Secretary General Ban Ki-moon calls for an immediate end to the Israeli attacks on Gaza.
Israel 's use of phosphorus shells over during Gaza offensive `` indiscriminate '' Human Rights Watch says shelling `` evidence of war crimes '' UN Secretary General Ban Ki-moon calls for an immediate end to the Israeli attacks on Gaza.