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 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 from 21 January, lost knocked out, another damage and breakdowns and forty field guns. Gazala line 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 west of Tobruk, to an old Ottoman fortress at Bir Hakeim 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, south of the 150th Infantry Brigade box, which was 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 defensive boxes known as Commonwealth Keep or Hill 209 at Ras El Madauur on the main defence line of Tobruk, about west-south-west of the