It is most commonly associated with 1930s-era gangsters such as [[Al Capone]] and [[John Dillinger]], and it was a common sight in 1930s gangster movies such as [[The Public Enemy]] and [[Little Caesar]]. It was used by the U.S. military from [[World War II]] to the early [[Vietnam War]]. | It is most commonly associated with 1930s-era gangsters such as [[Al Capone]] and [[John Dillinger]], and it was a common sight in 1930s gangster movies such as [[The Public Enemy]] and [[Little Caesar]]. It was used by the U.S. military from [[World War II]] to the early [[Vietnam War]]. |