Complex sentence: Soldiers recruited into the Garhwal Rifles are from the Garhwal Hills, one of the most beautiful areas of the Himalayas and are known for their hardiness, simplicity and upright manner.
Split into simpler sentences: Soldiers recruited into the Garhwal Rifles are from the Garhwal Hills, which is arguably one of the most beautiful areas of the Himalayas. These men are known for their hardiness, simplicity and upright manner.