Palestinian President Mahmoud Abbas raised an alarm on Sunday about a possible Israeli attack on the southern Gaza Strip city of Rafah. Palestinian news agency, WAFA, said Abbas raised his concerns in a speech during a special meeting of the World Economic Forum hosted by Saudi Arabia “If Israel invades the city of Rafah, where most of the people of the Gaza Strip gather, the biggest catastrophe in the history of the Palestinian people will occur, and they will be displaced outside the Gaza Strip. “We called for an end to the aggression and to supply the population with the humanitarian suppli…