Following is the full text of a statement delivered by Condoleezza Rice, the US Secretary of State, at Andrews Air Force base in Maryland before her departure on a trip to Europe:

We have received inquiries from the European Union, the Council of Europe, and from several individual countries about media reports concerning US conduct of the war on terror. I wish to respond now to those inquiries, as I depart today for Europe.

The United States and many other countries are waging a war against terrorism. For our country this war often takes the form of conventional military operations in places like Afghanistan and Iraq. Sometimes this is a political struggle, a war of ideas. It is a struggle waged also by our law enforcement agencies. Often we engage the enemy through the co-operation of our intelligence services with their foreign counterparts.

We must track down terrorists who seek refuge in areas where governments cannot take effective action, including where the terrorists cannot in practice be reached by the ordinary processes of law. In such places terrorists have planned the killings of thousands of innocents – in New York City or Nairobi, in Bali or London, in Madrid or Beslan, in Casablanca or Istanbul. Just two weeks ago I visited a hotel ballroom in Amman, viewing the silent, shattered aftermath of one of those attacks.

The United States, and those countries that share the commitment to defend their citizens, will use every lawful weapon to defeat these terrorists. Protecting citizens is the first and oldest duty of any government. Sometimes these efforts are misunderstood. I want to help all of you understand the hard choices involved, and some of the responsibilities that go with them.

One of the difficult issues in this new kind of conflict is what to do with captured individuals who we know or believe to be terrorists. The individuals come from many countries and are often captured far from their original homes. Among them are those who are effectively stateless, owing allegiance only to the extremist cause of transnational terrorism. Many are extremely dangerous. And some have information that may save lives, perhaps even thousands of lives.

The captured terrorists of the 21st century do not fit easily into traditional systems of criminal or military justice, which were designed for different needs. We have to adapt. Other governments are now also facing this challenge.

We consider the captured members of al-Qaeda and its affiliates to be unlawful combatants who may be held, in accordance with the law of war, to keep them from killing innocents. We must treat them in accordance with our laws, which reflect the values of the American people. We must question them to gather potentially significant, life-saving, intelligence. We must bring terrorists to justice wherever possible.

For decades, the United States and other countries have used "renditions" to transport terrorist suspects from the country where they were captured to their home country or to other countries where they can be questioned, held, or brought to justice.

In some situations a terrorist suspect can be extradited according to traditional judicial procedures. But there have long been many other cases where, for some reason, the local government cannot detain or prosecute a suspect, and traditional extradition is not a good option. In those cases the local government can make the sovereign choice to cooperate in a rendition. Such renditions are permissible under international law and are consistent with the responsibilities of those governments to protect their citizens.

Rendition is a vital tool in combating transnational terrorism. Its use is not unique to the United States, or to the current administration. Last year, then Director of Central Intelligence George Tenet recalled that our earlier counterterrorism successes included "the rendition of many dozens of terrorists prior to September 11, 2001".

Ramzi Youssef masterminded the 1993 bombing of the World Trade Center and plotted to blow up airlines over the Pacific Ocean, killing a Japanese airline passenger in a test of one of his bombs. Once tracked down, a rendition brought him to the United States, where he now serves a life sentence.

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