What was the Gazala–Bir Hakeim line during the North Africa campaign?

The Gazala–Bir Hakeim line was a defensive position established by the British 8th Army in Libya, located just west of Tobruk, following their retreat in early 1942 after a surprise counteroffensive by Erwin Rommel.12

The line served as a critical defensive front during the North Africa campaign. In late May 1942, Rommel attempted to bypass the position by maneuvering around its southern flank. Although the British initially held the line, the subsequent fighting—including the battle for a German defensive position known as "the Cauldron"—resulted in heavy losses for British armored forces.12

By June 14, 1942, after the British armored strength had been severely depleted, the 8th Army was forced to abandon the Gazala–Bir Hakeim line and begin a rapid retreat toward the Egyptian frontier. This withdrawal left the garrison at Tobruk isolated, leading to its capture by Rommel on June 21, 1942, a defeat considered one of the worst for Great Britain during the war.12