List of war crimes

This article lists and summarizes the war crimes that have violated the laws and customs of war since the Hague Conventions of 1899 and 1907. Since many war crimes are not prosecuted (due to lack of political will, lack of effective procedures, or other practical and political reasons), historians and lawyers will frequently make a serious case in order to prove that war crimes occurred, even though the alleged perpetrators of these crimes were never formally prosecuted because investigations cleared them of all charges. Under international law, war crimes were formally defined as crimes during international trials such as the Nuremberg Trials and the Tokyo Trials, in which Austrian, German and Japanese leaders were prosecuted for war crimes which were committed during World War II.