Palestinian firefighters try to extinguish fire at UN storehouse after an Israeli military strike in an area west of Gaza City on July 12, 2014. Israel vowed no let-up in its aerial bombardment of Gaza, which has claimed more than 100 Palestinian lives, as a defiant Hamas rained more rockets on the Jewish state. AFP PHOTO/MAHMUD HAMS (Photo credit should read MAHMUD HAMS/AFP/Getty Images)