Complex sentence: Some of the soldiers who died were as young as 15 and approximately 90 Muslims under the age of 18 died altogether and were said to be known for their "reckless bravery".
Split into simpler sentences: Some of the soldiers who died were as young as 15 and approximately 90 Muslims under the age of 18 died altogether. They were said to be known for their "reckless bravery".