On Friday evening, as Israeli air and ground forces ramped up their operations in the Gaza Strip and a communications blackout fell across the embattled territory, Salim Hammad received a text from the UK Foreign Office notifying him of a possible increase in attacks and violence.
“What are we supposed to do with that information?” said Salim, a 34-year-old doctor in Oxford whose father, Abdel, is stuck at the Rafah border crossing.
