to maintain its combat integrity east of the canal and keep up its defensive positions, to the surprise of many. According to Trevor N. Dupuy, the Israelis, Soviets and Americans overestimated the vulnerability of the Third Army at the time. It was not on the verge of collapse, and he wrote that while a renewed Israeli offensive would probably overcome it, this was not a certainty. David T. Buckwalter agrees that despite the isolation of the Third Army, it was unclear if the Israelis could have protected their forces on the west bank of the canal from a determined Egyptian assault and still maintain sufficient strength along the rest of the front. This assessment was challenged by Patrick Seale, who stated that the Third Army was "on the brink of collapse". Seale's position was supported by P.R. Kumaraswamy, who wrote that intense American pressure prevented the Israelis from annihilating the stranded Third Army. Herzog noted that given the Third Army's desperate situation, in terms of being cut off from re-supply and reassertion of Israeli air superiority, the destruction of the Third Army was inevitable and could have been achieved within a very brief period. Shazly himself described the Third Army's plight as "desperate" and classified its encirclement as a "catastrophe that was too big to hide". He further noted that, "the fate of the Egyptian Third Army was in the hands of Israel. Once the Third Army was encircled by Israeli troops every bit of bread to be sent to our men was paid for by meeting Israeli demands." Shortly before the ceasefire came into effect, an Israeli tank battalion advanced into Adabiya, and took it with support from the Israeli Navy. Some 1,500 Egyptian prisoners were taken, and about a hundred Egyptian soldiers assembled just south of Adabiya, where they held out against the Israelis. The Israelis also conducted their third and final incursion into Suez. They made some gains, but failed to break into the city center. As a result, the city was partitioned down the main street, with the Egyptians holding the city center and the Israelis controlling the outskirts, port installations and oil refinery, effectively surrounding the Egyptian defenders. Post-war battles On the morning of October 26, the Egyptian Third Army violated the ceasefire by attempting to break through the surrounding Israeli forces. The attack was repulsed by Israeli air and ground forces. The Egyptians also