 He asserted that the West Bank operation that Israel initiated was not aimed at rescuing the teens, who were known to be dead, or capturing their killers, but destroying a political agreement between Hamas and the Palestinian National Authority by targeting the Palestinian Unity Government.According to Petra Marquardt-Bigman, however, Blumenthal testified at the Russell Tribunal that he arrived in Gaza "at the onset of a five-day humanitarian ceasefire on August 14.