British Army during the Second World War the command of Lieutenant-General Sir Alan Cunningham. Over time the Eighth Army would be commanded by Neil Ritchie, Claude Auchinleck, Bernard Montgomery, Oliver Leese and Richard McCreery. In the early years of the war Eighth Army suffered from poor leadership and repeated reversals of fortune until the Second Battle of El Alamein when it advanced across Libya into Tunisia and joined the First Army in the 18th Army Group. The Eighth Army, under 15th Army Group command, later took part in the Allied invasion of Sicily, the Allied invasion of Italy and the Italian Campaign, where progress was slow and
Battle of Mersa Matruh flooded sections of the Nile Delta, prepared to demolish infrastructure and built up defensive positions at Alexandria and the Suez canal. A scorched earth policy was discussed but decided against. Mellenthin said of this: "Rommel may have been lucky, but Mersa Matruh was certainly a brilliant German victory and gave us great hopes of 'bouncing' 8th Army out of the Alamein line." This was not to be. In the event Auchinleck solidified 8th Army and in a month's worth of fighting checked the German advance at the First Battle of El Alamein. After it was over both sides were exhausted,