Paramilitary

https://en.wikipedia.org/wiki/Paramilitary

A paramilitary is a military that is not a part of a country's official or legitimate armed forces.[1] The Oxford English Dictionary traces the use of the term "paramilitary" as far back as 1934.[2]

photo: Legion of Frontiersmen, Edmonton Command, 1915 – a nationalist paramilitary group not officially affiliated with the Canadian Army