The nuremberg trials established which of the following principles?
a. individual must obey their leaders without question
b. planning an aggressive war is a crime against humanity
c. individuals are accountable for their actions, even during war.
d. the victors of a war can assign guilt for the start of war as they .

The Nuremberg Trials were established after WWII to punished the members of  Germany´s  Nazi party after the war. they were designed as a set of guidelines which were used to determine what constituted a war crime. The creation of the document was done by the International Law Commission of the United Nations.  

There were many principles established by this commission. C will be the correct answer because one of the most important principles of the commission was that "individuals are accountable for their actions, even during war."

Before The Nuremberg Trials the common excuses for individuals who were taken to trial for war crimes was that they were obeying "superior orders." After The Nuremberg Trials, that excuse was not longer accepted and the principle clearly explained that individuals always had the opportunity to act in a moral and ethical way, and could refuse to comply with that order.