Cant rely on that Im afraid, as they dont exist....
Also, under the Nuremberg Principles, it states (Principle IV) that....
"The fact that a person acted pursuant to order of his Government or of a superior does not relieve him from responsibility under international law, provided a moral choice was in fact possible to him".
In the common parlance, this principle could be paraphrased as follows: "It is not an acceptable excuse to say 'I was just following my superior's orders' "
http://www.icrc.org/ihl.nsf/full/390