In Military Terms, How Far Is a Klick?

Neither the term "klick" nor "click," a commonly used alternate spelling, is contained in the Department of Defense Dictionary. The "DOD Dictionary of Military and Associated Terms" lists all definitions, acronyms and abbreviations approved by the Joint Education and Doctrine Division. Approved military acronyms and terms typically serve a utilitarian purpose, such as more easily identifying alphabet letters and enhancing communication over the radio. Military slang typically reflects the pop culture and environmental circumstances of the time.