Related Rule
Australia
Practice Relating to Rule 4. Definition of Armed Forces
Australia’s Defence Force Manual (1994) defines the armed forces of a party to the conflict as “all organised armed forces, groups and units … which are under the command of a party to a conflict and are subject to an internal disciplinary system which enforces compliance with LOAC”. 
Australia, Manual on Law of Armed Conflict, Australian Defence Force Publication, Operations Series, ADFP 37 – Interim Edition, 1994, § 512; see also Law of Armed Conflict, Commanders’ Guide, Australian Defence Force Publication, Operations Series, ADFP 37 Supplement 1 – Interim Edition, 7 March 1994, Glossary, p. xxi.
Australia’s LOAC Manual (2006) defines the armed forces of a party to the conflict as “all organised armed forces, groups and units … which are under the command of a party to a conflict and are subject to an internal disciplinary system, which enforces compliance with the LOAC”. 
Australia, The Manual of the Law of Armed Conflict, Australian Defence Doctrine Publication 06.4, Australian Defence Headquarters, 11 May 2006, § 5.12.
The LOAC Manual (2006) replaces both the Defence Force Manual (1994) and the Commanders’ Guide (1994).