I'll be back tomorrow.

Reader's Digest version.
Start by looking up the doctrinal definitions we use. I will post them later.

FID is foreign internal defense in support of a host nation's internal defense and development plan (IDAD). FID can be conducted in the absence of an insurgency. If an insurgency is present, counterinsurgency may be necessary as a part of the FID mission.

Max? Klugzilla?