Complex sentence: A month after the 1st Battle of El Alamein, Rommel again decided to attempt a breakthrough at El Alamein, this time at the southern end of the line towards the Alam Halfa ridge.
Split into simpler sentences: A month after the 1st Battle of El Alamein, Rommel again decided to attempt a breakthrough at El Alamein. This time at the southern end of the line towards Alam Halfa ridge.