In July, "Indomitable" returned to the United Kingdom. She was soon back in action, participating in Operation Pedestal, the largest convoy to supply the besieged island of Malta. This convoy comprised 14 cargo ships and an unprecedentedly large escort of warships: , , , "Indomitable", , , , , , , , and 32 destroyers. One objective was for to launch her Spitfires to land at Malta, where they would remain; this was done on 11 August, and "Furious" returned to Gibraltar.