<P> Rommel continued his pursuit of the Eighth Army, which had fallen back to heavily prepared defensive positions at El Alamein . This region is a natural choke point, where the Qattara Depression creates a relatively short line to defend that could not be outflanked to the south because of the steep escarpment . On 1 July the First Battle of El Alamein began . Rommel had around 100 available tanks . The Allies were able to achieve local air superiority, with heavy bombers attacking the 15th and 21st Panzers, who had also been delayed by a sandstorm . The 90th Light Division veered off course and were pinned down by South African artillery fire . Rommel continued to attempt to advance for two more days, but repeated sorties by the RAF meant he could make no progress . On 3 July, he wrote in his diary that his strength had "faded away". Attacks by 21st Panzer on 13 and 14 July were repulsed, and an Australian attack on 16--17 July was held off with difficulty . Throughout the first half of July, Auchinleck concentrated attacks on the Italian 60th Infantry Division Sabratha at Tel el Eisa . The ridge was captured by the 26th Australian Brigade on 16 July . Both sides suffered similar losses throughout the month, but the Axis supply situation remained less favourable . Rommel realised that the tide was turning . A break in the action took place at the end of July as both sides rested and regrouped . </P> <P> Preparing for a renewed drive, the British replaced Auchinleck with General Harold Alexander on 8 August . Bernard Montgomery was made the new commander of Eighth Army that same day . The Eighth Army had initially been assigned to General William Gott, but he was killed when his plane was shot down on 7 August . Rommel knew that a British convoy carrying over 100,000 tons of supplies was due to arrive in September . He decided to launch an attack at the end of August with the 15th and 21st Panzer Division, 90th Light Division, and the Italian XX Motorized Corps in a drive through the southern flank of the El Alamein lines . Expecting an attack sooner rather than later, Montgomery fortified the Alam el Halfa ridge with the 44th Division, and positioned the 7th Armoured Division about 15 miles (24 km) to the south . </P> <P> 30 August - 5 September 1942 </P> <P> The Battle of Alam el Halfa was launched on 30 August . The terrain left Rommel with no choice but to follow a similar tactic as he had at previous battles: the bulk of the forces attempted to sweep around from the south while secondary attacks were launched on the remainder of the front . It took much longer than anticipated to get through the minefields in the southern sector, and the tanks got bogged down in unexpected patches of quicksand (Montgomery had arranged for Rommel to acquire a falsified map of the terrain). Under heavy fire from British artillery and aircraft, and in the face of well prepared positions that Rommel could not hope to outflank due to lack of fuel, the attack stalled . By 2 September, Rommel realized the battle was unwinnable, and decided to withdraw . </P>

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