Battle of Gazala

The Battle of Gazala, also the Gazala Offensive (Italian: Battaglia di Ain el-Gazala) was fought near the village of Gazala during the Western Desert Campaign of the Second World War, west of the port of Tobruk in Libya, from 26 May to 21 June 1942. Axis troops consisting of German (Panzerarmee Afrika; Generaloberst Erwin Rommel) and Italian units fought the British Eighth Army (General Sir Claude Auchinleck, also Commander-in-Chief Middle East) composed mainly of British Commonwealth, Indian and Free French troops.

The Axis troops made a decoy attack in the north as the main attack (Operation Venezia) moved round the southern flank of the Gazala position. Unexpected resistance at the south end of the line around the Bir Hakeim box by the Free French garrison left Panzerarmee Afrika with a long and vulnerable supply route around the Gazala Line. Rommel retired to a defensive position backing onto Allied minefields (the Cauldron), forming a base in the midst of the British defences. Italian engineers lifted mines from the west side of the minefields to create a supply route through to the Axis side.

Operation Aberdeen, an attack by the Eighth Army to finish off the Panzerarmee, was poorly co-ordinated and defeated in detail; many British tanks were lost and the Panzerarmee regained the initiative. The Eighth Army withdrew from the Gazala Line and the Axis troops overran Tobruk in a day. Rommel pursued the Eighth Army into Egypt and forced it out of several defensive positions. The Battle of Gazala is considered the greatest victory of Rommel's career.

As both sides neared exhaustion, the Eighth Army checked the Axis advance at the First Battle of El Alamein. To support the Axis advance into Egypt, the planned attack on Malta (Operation Herkules) was postponed. The British were able to revive Malta as a base for attacks on Axis convoys to Libya, greatly complicating Axis supply difficulties at El Alamein.

Following Operation Crusader, in late 1941, the British Eighth Army had relieved Tobruk and driven the Axis forces from Cyrenaica to El Agheila. The Eighth Army advance of 500 mi (800 km) over-stretched its supply lines and in January 1942, the Allies reduced the front line garrison for work on lines of communication and supply dumps, preparatory to another westwards advance against Tripolitania. The elimination of Force K from Malta, which ran into an Italian minefield off Tripoli in mid-December and the arrival of Fliegerkorps II in Sicily, neutralised Allied air and naval forces in Malta, allowing more Axis supplies to reach Libya. After a two-month delay, German and Italian forces in Libya began to receive supplies and reinforcements in men and tanks, which continued until the end of May, when Fliegerkorps II was transferred to the Russian front.

While aware from signals intelligence of these reinforcements, GHQ in Cairo underestimated their significance and Axis fighting strength, having greatly exaggerated the casualties inflicted on the Axis during Operation Crusader. In an appreciation made in January 1942, Auchinleck alluded to an Axis fighting strength of 35,000 men, when the true figure was about 80,000 (50,000 German and 30,000 Italian troops). The Eighth Army expected to be ready by February and GHQ Cairo believed that the Axis would be too weak and disorganised to mount a counter-offensive in the meantime. On 21 January, Rommel sent out three strong armoured columns to make a tactical reconnaissance. Finding only the thinnest of screens, Rommel changed his reconnaissance into an offensive, recaptured Benghazi on 28 January and Timimi on 3 February. By 6 February, the Allies had fallen back to a line from Gazala to Bir Hakeim, a few miles west of Tobruk, from which the Italo-Germans had retired seven weeks before. The Allies had 1,309 casualties from 21 January, lost 42 tanks knocked out, another 30 through damage and breakdowns and forty field guns.

Between Gazala and Timimi, just west of Tobruk, the Eighth Army was able to concentrate its forces sufficiently to turn and fight. By 4 February, the Axis advance had been halted and the front line stabilised from Gazala on the coast 30 mi (48 km) west of Tobruk, to an old Ottoman fortress at Bir Hakeim 50 mi (80 km) inland to the south. The Gazala line was a series of defensive boxes accommodating a brigade each, laid out across the desert behind minefields and wire, watched by regular patrols between the boxes. The Free French were to the south at the Bir Hakeim box, 13 mi (21 km) south of the 150th Infantry Brigade box, which was 6 mi (9.7 km) south of the 69th Infantry Brigade box. The line was not evenly manned, with a greater number of troops covering the coast road, leaving the south less protected but the line was behind deep minefields and a longer line would make an attack around the southern flank harder to supply. Behind the Gazala line, were several defensive boxes. Commonwealth Keep (also known as Hill 209) was at Ras El Madauur on the main defence line of Tobruk, about 9.0 mi (14.5 km) west-south-west of the port. The Acroma, Knightsbridge (12 mi (19 km) south of Acroma) and El Adem boxes were sited to block tracks and junctions. A box at Retma was finished just before the Axis offensive but work on boxes at Point 171 4.0 mi (6.4 km) south-east of Bir Hakeim and Bir el Gubi did not begin until 25 May.

Churchill pressed Auchinleck to attack to push the Axis out of Cyrenaica and relieve the pressure on Malta, which Churchill felt was essential to the war effort,