"Nearly a half century ago, researchers found that a small number of juvenile offenders- 6 percent-were responsible for a dispro
portionate amount of the violent crime attributed to a group of nearly 10,000 individuals. Further studies have supported the idea of a "chronic 6 percent" and, in the process, provided law enforcement with one of the most useful concepts in the history of criminology known as the......."
Chronic offender is the term used by the criminology to define who has frequent interactions with law enforcement and has a lengthy history of arrests, commonly for the same or similar crimes. Normally, refers to a small number of people that are responsible for a large percentage of crime.
Aerial attacks weren't really a thing, unrestricted submarine warfare was a reason why the US joined the war but not a factor in high casualty rates, and blimps using direct artillery fire isnt as practical as machine guns and poison gas