Complex sentence: Montesinos was dishonorably discharged from the military and sentenced to a year in military prison, a far less severe sentence than the death penalty that was the punishment for traitors during the military regime.
Split into simpler sentences: Montesinos was dishonorably discharged from the military and sentenced to a year in military prison. This was a far less severe sentence than the customary death penalty that was the punishment for traitors during the military regime.