Complex sentence: One of World War II's definitive battles that happened in Takrouna was the one that followed the Battle of the Mareth Line from 16 March to 31 March 1943, the Axis forces were driven back into Tunisia.
Split into simpler sentences: One of World War II's definitive battles happened in Takrouna. After the Battle of the Mareth Line from 16 March to 31 March 1943, the Axis forces were driven back into Tunisia.