American soldiers had to guard prisoners on the inside while receiving mortar and weapons fire from the outside. Guantanamo is distant from any battlefield, making it far more secure.

Congress has created and funded a huge peacetime military that has substantial abilities to wage offensive operations, and it has not placed restrictions on the use of that military or the funds to support it, because it would rather let the president take the political risks in deciding on war. If Congress wanted to play a role in restricting war, it could - it simply does not want to. But we should not mistake a failure of political will for a violation of the Constitution.

Declarations of war have never been a constitutional requirement for military action abroad.

An American leader would be derelict of duty if he did not seek to understand all his options in such unprecedented circumstances. Presidents Lincoln during the Civil War and Roosevelt in the lead-up to World War II sought legal advice about the outer bounds of their power - even if they did not always use it. Our leaders should ask legal questions first, before setting policy or making decisions in a fog of uncertainty.

Without territory, it does not even have the resources to provide detention facilities for prisoners, even if it were interested in holding captured POWs.

While Taliban fighters had an initial claim to protection under the conventions, they lost POW status by failing to obey the standards of conduct for legal combatants: wearing uniforms, a responsible command structure, and obeying the laws of war.

I believe that the power to declare war is most important in limiting the powers of the national government in regard to the rights of its citizens, but that it does not require Congress to give its approval before the president uses force abroad. I do not believe that the framers of the Constitution understood the power to declare to mean "authorize" or "commence" war. That does not mean that the separation of powers or checks and balances will not work.