the U.S. and Soviet Union, on October 22. It called upon the belligerents to immediately cease all military activity. The cease-fire was to come into effect 12 hours later at 6:52 pm Israeli time. Because this was after dark, it was impossible for satellite surveillance to determine where the front lines were when the fighting was supposed to stop. U.S. Secretary of State Henry Kissinger intimated to Prime Minister Meir that he would not object to offensive action during the night before the ceasefire was to come into effect. Several minutes before the ceasefire came into effect, three Scud missiles were fired at Israeli targets by either Egyptian forces or Soviet personnel in Egypt. This was the first combat use of Scud missiles. One Scud targeted the port of Arish and two targeted the Israeli bridgehead on the Suez Canal. One hit an Israeli supply convoy and killed seven soldiers. When the time for the ceasefire arrived, Sharon's division had failed to capture Ismailia and cut off the Second Army's supply lines, but Israeli forces were just a few hundred metres short of their southern goal—the last road linking Cairo and Suez. Adan's drive south had left Israeli and Egyptian units scattered throughout the battlefield, with no clear lines between them. As Egyptian and Israeli units tried to regroup, regular firefights broke out. During the night, Elazar reported that the Egyptians were attacking in an attempt to regain land at various locations, and that nine Israeli tanks had been destroyed. He asked permission from Dayan to respond to the attacks and Dayan agreed. Israel then resumed its drive south. It is unclear which side fired first but Israeli field commanders used the skirmishes as justification to resume the attacks. When Sadat protested alleged Israeli truce violations, Israel said that Egyptian troops had fired first. William B. Quandt noted that regardless of who fired the first post-ceasefire shot, it was the Israeli Army that was advancing beyond the October 22 ceasefire lines. Adan resumed his attack on October 23. Israeli troops finished the drive south, captured the last ancillary road south of the port of Suez, and encircled the Egyptian Third Army east of the Suez Canal. The Israelis then transported enormous amounts of military equipment across the canal, which Egypt claimed was in violation of the ceasefire. Egyptian aircraft launched repeated attacks in support of the Third Army, sometimes in