[2] He and his family lived there until they were exiled as refugees after Israel's capture of the city in the 1948 Arab-Israeli War, in which he participated as part of the Palestinian Arab forces.

Syrian authorities threatened to arrest him that year for attempting to set up another Palestinian commando group, but he fled to Kuwait.

Also, in that year, he spoke to the Egyptian Foreign Minister Mahmoud Riyad and Mohammad Hassanein Heykal on behalf of Gamal Abdel Nasser in order to familiarize him with Fatah and its armed branch al-Assifa.

[1] Al-Hassan called election of a Palestinian provisional government capable of ending the PLO’s isolation after the First Intifada in 1991.

He settled in Rabat, Morocco that year after being expelled, along with hundreds of thousands of other Palestinians, from Kuwait during the Gulf War, in which the PLO aligned itself with Saddam Hussein's Iraq.