In 2010 the signatory states of the International Criminal Court, established to prosecute war crimes, convened a conference to add aggression to the list of crimes the court could try. (See the Rome Statute here, the relevant provisions and definitions of the concept of “aggression” are described in Article 8, page 7). The US, Russia, Iran, China and India have refused to sign up as ICC members and have not welcomed the addition of “aggression”. But fifteen NATO states have. Moreover, Russia wrote its own law into its Criminal Code. It prohibits “Planning, Preparing or Waging an Aggressive War”. It goes further: it prohibits “Public Appeals to Unleash an Aggressive War”. This opens the door to Russian leaders and politicians being prosecuted in domestic courts. In the US under President Barack Obama, there was serious discussion about whether to prosecute those who had committed torture. It would have been popular...