The violence that soldiers experience in war can lead to emotional 'disturbance' in later years.
He was arrested for 'disturbance of the peace'. [=behaving in a violent or noisy way in public]
She suffered from frequent sleep 'disturbances'. [='disruptions']
(..) HoId onto your Iug nuts... it's time for an overhauI. It was a dream. It was a dream. I must Iay off the cartoons. Lt. KeIIaway. You know anything about the disturbance Iast night? Disturbance? Some prowIer broke in and attacked Mrs. Peenman. Attacked? You didn't hear anything? (..)1994 The Mask