The Tunisian Campaign - Piercing the Mareth Line
The tactical milestone commemorated in the airmail issue is the Battle of the Mareth Line (Mareth) in Tunisia, which took place in March 1943. Serving as a crucial phase of the wider North African Campaign, Free French forces—including Leclerc's mobile Force L—integrated with the British Eighth Army to outflank and shatter the heavily fortified defensive positions held by Axis forces. The successful breach of this line forced a full Axis retreat toward Tunis, paving the way for the total liberation of North Africa and proving the combat readiness of Free French divisions on the international stage.