Yesterday the Obama administration filed a brief with the US District Court for the District of Columbia regarding its detention authority of persons previously classified by the Bush administration as ‘enemy combatants.’ (Analysis by Deborah Pearlstein at OJ; more from the Lift). The brief now outlines the administration’s official position on the legal basis of the detention of suspected terrorists.

The brief has already made headlines because the Obama administration decided to scrap the rightfully much maligned term ‘enemy combatant.’ The one other notable legal development is that the administration also rejected the Bush position that it had inherent constitutional authority to detain these persons, but based its authority solely in a statute, the 2001 Authorization for the Use of Military Force (AUMF).

The substantive standard for detention offered by the Obama administration, however, is almost identical to the one offered by the Bush administration:

The President has the authority to detain persons that the President determines planned, authorized, committed, or aided the terrorist attacks that occurred on September 11, 2001, and persons who harbored those responsible for those attacks. The President also has the authority to detain persons who were part of, or substantially supported, Taliban or al-Qaida forces or associated forces that are engaged in hostilities against the United States or its coalition partners, including any person who has committed a belligerent act, or has directly supported hostilities, in aid of such enemy armed forces.

(Brief at 1)

As explained by Deborah, the only difference is that the Obama administration requires persons to have substantially supported Taliban or Al-Qaida, while for the Bush administration support alone sufficed. This change is obviously nothing more than cosmetic.

But what is of interest to me here is how the new administration arrives at this standard for detention. In its view, it is the AUMF that provides this authority, and that authority ‘is necessarily informed by principles of the laws of war.’ Further,

The laws of war have evolved primarily in the context of international armed conflicts between the armed forces of nation states. This body of law, however, is less well-codified with respect to our current, novel type of armed conflict against armed groups such as al-Qaida and the Taliban. Principles derived from law-of-war rules governing international armed conflicts, therefore, must inform the interpretation of the detention authority Congress has authorized for the current armed conflict.

(Brief at 1)

In truth this position is quite profoundly mistaken – as mistaken as was the Bush administration one. First, it totally elides the distinction between international and non-international armed conflicts as a matter of IHL. Second, because AUMF is seen as the statutory authority for detention, also at work is an elision between the jus ad bellum and jus in bello. Third, the Brief adopts the ‘war paradigm’ in toto – even though the choice between a war paradigm and a crime paradigm for fighting terrorism is in itself a false one. Let me now go step by step through the Brief’s analysis.

1. The AUMF, jus ad bellum and jus in bello

The administration starts from the uncontroversial position that the AUMF authorized the use of force both against states, as well as against non-state entities, involved in the 9/11 attacks:

The AUMF authorizes use of military force against those “nations, organizations, or persons [the President] determines planned, authorized, committed, or aided the terrorist attacks that occurred on September 11, 2001, or harbored such organizations or persons, in order to prevent any future acts of international terrorism against the United States by such nations, organizations or persons.”

(Brief at 4)

From this, the administration proceeds to say that

Under international law, nations lawfully can use military force in an armed conflict against irregular terrorist groups such as al-Qaida. The United Nations Charter, for example, recognizes the inherent right of states to use force in self defense in response to any “armed attack,” not just attacks that originate with states. United Nations Charter, art. 51. The day after the attacks, the United Nations Security Council adopted Resolution 1368, which affirmed the “inherent right of individual or collective self-defence in accordance with the Charter” and determined “to combat by all means threats to international peace and security caused by terrorist acts.” U.N. General Assembly Security Council Resolution of Sept. 12, 2001 (S/RES/1368).

Note the first error that the Brief makes – the failure to distinguish between the jus ad bellum and the jus in bello. States certainly have the right to respond to an ‘armed attack’ in self-defense, but an ‘armed attack’, an ad bellum concept, is not the same thing as an ‘armed conflict’, an in bello concept. The former is the prerequisite for the lawful use of force in self-defense, the latter is the threshold for the application of IHL. These need not be the same, particularly when the armed attack is committed by a non-state actor (I will leave aside the issue whether armed attacks within the meaning of Art. 51 of the Charter can be committed by non-state entities; I believe that they can be, but that is not an issue that I want to explore at the moment).

Thus, for instance, Al-Qaida committed an armed attack against the United States on 9/11, giving it an entitlement to act in self-defense. But it was only when the US exercised this right to self-defense by invading Afghanistan that an international armed conflict commenced (I will turn to the issue of a distinct armed conflict with Al-Qaida in a moment). Though both ‘armed attack’ and ‘armed conflict’ are essentially factual conditions, the difference between the two is straightforward – an armed attack a single event, or a series of such similar events; an armed conflict is an entire process. For instance, Pearl Harbor was an armed attack, which initiated the armed conflict between Japan and the US.

This brings me to the broader distinction between jus ad bellum and jus in bello: the former deals with the entitlement to use force, the latter regulates the use of force when it is in fact used, independently of the ad bellum entitlement to use force. That the AUMF authorized the use of force against certain entities, as a matter of US domestic law, does not mean that an armed conflict existed from that moment. It is only when the force was in fact used that such a conflict commenced. The same applies to authorizations of the UN Security Council. For example, in Resolution 687 the UNSC authorized the US and other willing states to use force against Iraq, but an international armed conflict between the US and Iraq started only with the actual opening of hostilities, when the first short was fired. Until then, there was only the international armed conflict between Iraq and Kuwait. Indeed, the international armed conflict between the US and Iraq would have existed even if there was no authorization from the UNSC, as IHL applies whenever force is used, regardless of its ad bellum lawfulness.

Thus, similarly, an international armed conflict between the US and Afghanistan would have existed even if there was no AUMF, if force was in fact used by the US, as the existence of an armed conflict is a question of fact. To the extent that the US believes that it is engaged in a distinct armed conflict with Al-Qaeda, the existence of that conflict is also a question of fact – the AUMF has absolutely no bearing on it, just like a UNSC resolution would have no bearing on it.

It is important to understand why the existence of an armed conflict, and the consequent application of IHL, is divorced from these authorizations: experience has taught us that each side in a conflict believes in the justness of its ad bellum cause; that is why the application of in bello rules must not depend on ad bellum considerations (for an examination of the need to maintain the distinction, see this excellent recent article by Robert Sloane).

To sum up, that Congress authorized the use of force against certain entities in the AUMF is totally irrelevant for the question whether an international or a non-international armed conflict exists as a matter of the international law of war. It is international law that gives an answer to that question, and it does so by reference to purely factual criteria.

2. What armed conflict?

So what does international law have to say on the matter? The readers will recall that the Bush administration argued that it was engaged in two distinct armed conflicts: (1) an international armed conflict with the state of Afghanistan, and (2) an international armed conflict with Al-Qaida, a non-state actor. This latter armed conflict was global, amorphous, and essentially endless. An Al-Qaeda member in Spain, Yemen, or Morocco could be targeted or detained just as easily as an Al-Qaeda fighter in Afghanistan.

IHL scholars have practically unanimously rejected the idea that (2) can be an international armed conflict, simply because such conflicts are defined by Common Article 2 of the Geneva Conventions as conflicts between two states only and exclusively. Such has also been the constant position of the ICRC. In Hamdan, the US Supreme Court likewise rejected the Bush position that there was an international armed conflict between the US and Al-Qaeda, ruling that the law of non-international armed conflicts, as set out in Common Article 3, applied instead.

The problem with the Hamdan ruling is that it did not specify which possible non-international armed conflict it was referring to, as I have explained at length elsewhere. For example, the Court could have thought that Hamdan was a participant in the armed conflict in Afghanistan, which started as an international armed conflict, but was later transformed into a non-international armed conflict with the toppling of the Taliban and the creation of the new internationally recognized Afghan government (the position is the same regarding Iraq). That conflict has a defined area where it is taking place – the state of Afghanistan; it has distinct parties – the Afghan government and its international allies on the one side, and the Taliban, Al-Qaeda and other armed groups on the other; and it has an end in sight – whenever the still ongoing hostilities in Afghanistan cease to be ‘protracted armed violence’, i.e. fall beneath a certain level of intensity.

Or, the Court could have thought that Hamdan was a participant in an amorphous, global non-international armed conflict between the United States and Al-Qaeda. Textually, that seems what the Court had in mind, but this position is highly problematic. On the terms of CA3 itself, a non-international armed conflict cannot exist all over the globe, without a defined piece of territory where it is localized. There is no armed conflict between the US and Al-Qaeda outside Afghanistan, and perhaps Iraq and Pakistan. There are no hostilities anywhere else, no fighting, no protracted armed violence. That there are some Al-Qaeda agents lurking in the shadows all over the world does not mean that they are all participating in some sort of global conflict within the meaning of CA3.

The Obama administration seems to have adopted this latter reading of Hamdan. Thus it states, as I have already quoted, that

The laws of war have evolved primarily in the context of international armed conflicts between the armed forces of nation states. This body of law, however, is less well-codified with respect to our current, novel type of armed conflict against armed groups such as al-Qaida and the Taliban. Principles derived from law-of-war rules governing international armed conflicts, therefore, must inform the interpretation of the detention authority Congress has authorized for the current armed conflict.

(Brief at 1, emphasis added)

The readers will have already noted the glaring non-sequitur in the third sentence quoted. There is a reason why non-international armed conflicts are distinct from international conflict. One of these reasons was precisely that states did not want to apply, and still don’t want to apply, the same rules in both kinds of conflicts, particularly when it comes to the privilege to engage in hostilities and the authority to detain.

3. Detention in international and non-international armed conflict

This is so because the two kinds of armed conflict operate on two fundamentally different presuppositions. International armed conflicts are conflicts between two states, two equal sovereigns. That is why the combatants in such conflicts have the privilege to participate in hostilities, and can at the same time be lawfully killed. If captured, they can be lawfully detained as prisoners of war so that they do not participate in hostilities, for the duration of the hostilities (see Arts. 4 & 118 of the Third Geneva Convention). Civilians can also be interned, if the security of the Detaining Power makes it absolutely necessary, on an individual basis and with periodic review (see Arts. 41-43 of the Fourth Geneva Convention).

In both cases it is international law itself that provides the authority for detention. But this is simply NOT the case in non-international armed conflict. In such conflicts, IHL neither authorizes nor prohibits detention or internment, but leaves this matter to be regulated by domestic law and by other parts of international law, such as human rights law. The reason for this is that there is no privilege of belligerency in non-international conflicts, no right to participate in hostilities, as states would NEVER recognize the right of non-state actors to use force against them.

As in international conflicts, in internal conflicts IHL operates under the basic principle of equality: the rules that apply to one party must also apply to the other. But to do that some rules that applied in international conflicts had to be deliberately discarded, and the authority to detain was one of them. In other words, if IHL in non-international conflicts gave the authority to states to detain members of rebel armed groups, it would also have to give this authority to the armed groups vis-a-vis the state’s soldiers. If the Afghan government has the right under international law to detain members of the Taliban, then the Taliban would also have the right to detain the soldiers of the lawful Afghan government. Or, if the US has the right under international law to detain members of Al-Qaeda, then Al-Qaeda also has the right to detain any US soldiers that it captures. One needs only to state this proposition to see how utterly absurd it is, and why states would never accept it.

4. Conclusion

The Obama administration’s position is thus internally contradictory. On the one hand it claims that the US is engaged in a non-international armed conflict with Al-Qaeda, and on the other tries to import rules governing international conflicts into precisely the one area where they cannot be imported. International law governing non-international armed conflict has absolutely nothing to say on the authority to detain, and it cannot be used to interpret the AUMF as creating such authority. If the AUMF actually contained a provision with the detention standard proposed by the administration, then this standard could be assessed on its own merits against the US Constitution and international human rights law. But the AUMF contains no such provision, and it just cannot be read into a mere authorization to use force.