Japan Times: The Nuremberg Principles, a set of guidelines established after World War II to try Nazi Party members, were developed to determine what constitutes a war crime. The principles can also be applied today when considering the conditions that led to the Iraq war and, in the process, to the deaths of hundreds of thousands of people, many of them children, and to the devastation of a country's infrastructure.
In January 2003, a group of American law professors warned President George W. Bush that he and senior officials of his government could be prosecuted for war crimes if their military tactics violated international humanitarian law.
Perhaps one of the most serious breaches of international law by the Bush administration was the doctrine of "preventive war." In the case of the Iraq war, it was carried out without authorization from the U.N. Security Council in violation of the U.N. Charter, which forbids armed aggression and violations of any state's sovereignty except for immediate self-defense.