What is an occupation?
IHL follows a very practical approach in defining military occupation. It refers to factual control over a territory or a population. It does not require any form of declaration or intent of the invading forces. The motives for the presence of foreign military forces on the territory, be they liberation, self-defence, or enforcing pre-emptive doctrine are irrelevant. The IHL rules pertaining to occupation apply as soon as:
1. There is an international armed conflict;
2. A foreign military force has made an incursion on enemy territory;
3. This force is exerting any form of control over the population of that territory.
What is the law of occupation?
The law of belligerent occupation is perhaps one of the oldest and today the most developed branch of international humanitarian law (IHL). It is codified in particular in Arts. 42-56 of the 1907 Hague Regulations and in Arts. 47-78 of the 1949 Fourth Geneva Convention, which are generally accepted as customary international law.
From the point of view of IHL, civilians in occupied territories deserve and need particularly detailed rules of protection. Living on their own territory, they come into contact with the foreign armed forces independently of their will, merely because of the armed conflict in which those forces obtains territorial control over the place where civilians live. The law of occupation is applicable independently of the motives or legality of the military campaign. (See HPCR policy brief On the Legality of War vs. the Laws of Armed Conflict.)
The civilians have no obligation of loyalty towards the occupying power, regardless of the motives of the invading forces. The only obligations they have relate to their civilian status, i.e., not to participate in hostilities.
Civilians participating in hostilities are no longer immune from attacks. The occupying power is subject to a series of obligations pertaining to the administration of the territories it occupies and the population it controls as a substitute and caretaker for the national authorities.
When does occupation begin?
The criteria for the application of the law of occupation are relatively straightforward. The law of occupation applies whenever, during an armed conflict, a territory and its population come under control of the enemy of the State authorities previously controlling that territory (See Art. 42 of the Hague Regulations and Art. 2(1) and Art. 4 of Fourth Geneva Convention.) The overriding concern of the IHL rules is to regulate the relationship between the civilian population and the invading forces as soon as the two are in contact, independently of the duration or motives of the military operations. In this context, even a military platoon occupying a village for a period of a few hours, has obligations to take care of the population (emergency health care, food and water supplies, etc.), not as a matter of charity but as a duty under the rules of IHL. The longer this occupation lasts, the more detailed the obligations become. In the case of Iraq, the fall of the regime certainly creates long-term obligations pertaining to all spheres of public services, from the maintenance of law and order, the administration of justice, the supply of food, water, and health services, and the administration of the Iraqi resources for the benefit of its people.
When does occupation end?
Occupation ends whenever one of the conditions of occupation is no longer met.
1. The international armed conflict has ended.
An agreement has been signed between the parties at conflict bringing to an end the armed conflict. In general, such agreement will involve the withdrawal of the occupying forces. There may be situations, however, where the former occupier will maintain a military presence in the country, with the agreement of the legitimate government under a security arrangement (e.g. US military presence in Japan and Germany). The legality of such agreement and the legitimacy of the national authorities signing it are subject to international recognition, whereby members of the international community reestablish diplomatic and political relations with the national government. In this context, it is in the interest of all the parties involved to maintain a clear regime of occupation until the conditions for stability and peace are created allowing the re-establishment of a legitimate national government. A post-occupation military presence can only be construed in the context of a viable, stable and peaceful situation.
2. Foreign military forces have withdrawn from enemy territory or are no longer exerting control over the population of that territory.
In case of an on-going conflict, the withdrawal of the forces also brings an end of the applicability of the law of occupation. It implies however that the enemy power has regained control over its population and territory. The mere withdrawal of troops from certain conquered places does not end or suspend the application of IHL rules if it leaves a vacuum of authority. The control of the territory and the legal duties involved remain in effect until the front lines have stabilized. Evidently, in the course of a military campaign where front lines can move back and forth many times and responsibility over the territory and population is unclear, the implementation of such rules can become impractical. However, in the case of the collapse of enemy forces, as in Iraq, the law of occupation applies to territories and populations entering into contact with invading forces, and remains applicable regardless of further tactical deployment of troops. In other words, there is no vacuum of authority or responsibility once troops have moved into a given territory. Obligations for the maintenance of law and order as well as all other obligations pertaining to occupying powers are applicable to the Coalition forces as soon as they drive Iraqi forces out of civilian areas.
In both cases:
What are the obligations of the Coalition forces in Iraq?
In principle, life in the occupied territory must be allowed to continue as normally as possible. The obligations of the occupying power can be summed up as permitting life in the occupied territory to continue without being affected by its presence. As authority has passed into the hands of the occupant, it becomes responsible for public order, safety and welfare in the occupied territory. IHL is strong in protecting the status quo ante, while weak in responding to new needs of the population of the occupied territory. The longer the occupation lasts, the more shortcomings of the regime established by IHL therefore appear. Only international institutions such as the U.N. or new local authorities established in conformity with the right of the Iraqi people to self-determination can establish a new political system in Iraq.
The legal implications of this approach are the following:
Regarding internal security, the maintenance of law and order and public welfare
Regarding the administration of justice
Regarding property and resources
