The US-led invasion and occupation of Iraq led to more than a million people being killed, displaced five million from their homes and shattered countless more lives. It was a colossal, premeditated war crime. Leaders of governments in the countries responsible for this enormity seek to minimise and forget about it: to 'move on'. We must not let them, because they want to retain the option of making the same political decisions, condemning more innocent people to death, somewhere else in the future.