Sheltering from Israeli night raids on Gaza, Mazen Mohammad and his family slept on the ground floor of their apartment block, huddling together with frightened neighbours as explosions rang all around them. The neighbourhood they woke up to the next day was ravaged beyond recognition: buildings had crumbled to the ground and debris carpeted the streets."As soon as we saw the neighbourhood, my wife and I simultaneously asked ourselves: Is this real?," said Mohammad, a 38-year-old father of four.