Is an insurgent an insurgent?

[Saifullah]

I am working in northern Afghanistan and have encountered bit of a problem.

Describing the different actors on the ground has proven difficult using the term "insurgent". Is someone who is not seeking to overthrow the central government, but seeking to establish and consolidate a local powerbase that competes with local government structures an insurgent? Is he a "local insurgent"? Will the sum of all these local actors still qualify as an insurgency?

Any views on this?