The British and US experience with the use of local, irregular security forces suggest their importance in assisting the host nation government and counterinsurgent forces. Their successful establishment, training, and employment demonstrate the importance of several prerequisites including partnership with an advisory force, consent of the host nation's government to exist, and that the security force is accountable to the local civil authority. Without these prerequisites, the local, irregular security force could risk illegitimacy in the eyes of the populace, the host nation government,...