Throughout the Falkland Islands conflict Morris was in Buenos Aires, one of only a handful of British journalists allowed into Argentina to report from the enemy side during a war. Immediately after the war ended, he was assigned to Israel to cover the invasion of southern Lebanon. When the BBC decided to switch him to the Palestine Liberation Organisation (PLO) side he was trapped inside West Beirut with the guerrilla forces of Yasser Arafat and under daily shellfire from the Israeli Defense Force (IDF). While in Beirut, Morris broke the news of the massacre of 3,500 Palestinians by Lebanese Phalangist militias in Sabra and Shatila. He managed to smuggle video-recorded evidence of the event to Damascus in neighbouring Syria where the pictures were sent by satellite to London. The pictures caused worldwide protests and almost led to the downfall of the Israeli government. Defence minister Ariel Sharon, later to become Prime Minister, was forced to resign over complicity in the refugee camp attacks.