and the operation meant to establish Israeli sovereignty over the territory rather than actually conquer it. The Golani, Negev, and Alexandroni brigades participated in the operation, together with some smaller units and with naval support. On 10 March, Israeli forces secured the Southern Negev, reaching the southern tip of Palestine: Umm Rashrash on the Red Sea (where Eilat was built later) and taking it without a battle. Israeli soldiers raised a hand-made Israeli flag ("The Ink Flag") at 16:00 on 10 March, claiming Umm Rashrash for Israel. The raising of the Ink Flag is considered to be the end of the war. Anglo-Israeli air clashes As the fighting progressed and Israel mounted an incursion into the Sinai, the Royal Air Force began conducting almost daily reconnaissance missions over Israel and the Sinai. RAF reconnaissance aircraft took off from Egyptian airbases and sometimes flew alongside Royal Egyptian Air Force planes. High-flying British aircraft frequently flew over Haifa and Ramat David Airbase, and became known to the Israelis as the "shuftykeit." On 20 November 1948, an unarmed RAF photo-reconnaissance De Havilland Mosquito of No. 13 Squadron RAF was shot down by an Israeli Air Force P-51 Mustang flown by American volunteer Wayne Peake as it flew over the Galilee towards Hatzor Airbase. Peake opened fire with his cannons, causing a fire to break out in the port engine. The aircraft turned to sea and lowered its altitude, then exploded and crashed off Ashdod. The pilot and navigator were both killed. Just before noon on 7 January 1949, four Spitfire FR18s from No. 208 Squadron RAF on a reconnaissance mission in the Deir al-Balah area flew over an Israeli convoy that had been attacked by five Egyptian Spitfires fifteen minutes earlier. The pilots had spotted smoking vehicles and were drawn to the scene out of curiosity. Two planes dived to below 500 feet altitude to take pictures of the convoy, while the remaining two covered them from 1,500 feet. Israeli soldiers on the ground, alerted by the sound of the approaching Spitfires and fearing another Egyptian air attack, opened fire with machine guns. One Spitfire was shot down by a tank-mounted machine gun, while the other was lightly damaged and rapidly pulled up. The remaining three Spitfires were then attacked by patrolling IAF Spitfires flown by Chalmers Goodlin and John McElroy, volunteers from the United States and Canada respectively. All three Spitfires were