On Hitler's insistence, the OKW developed a revised plan for the capture of Gibraltar, which might have been implemented once the German invasion of the Soviet Union had been completed. Codenamed Felix-Heinrich, the plan was submitted to General Franz Halder on 10 March 1941. It proposed that as soon as the invading forces in the Soviet Union reached a line between Kyiv and Smolensk, hopefully by 15 July, units could then be withdrawn to prepare for the Gibraltar operation, which it was thought could begin on 15 October. Felix-Heinrich would broadly follow the original plan, with the same forces, but with new supporting units.
