The next revolution in warfare threatens to undermine fundamental principles of morality and law. Fully autonomous weapons, already under development in a number of countries, would have the power to select targets and fire on them without meaningful human control. In so doing, they would violate basic humanity and the public conscience. A new report from Human Rights Watch and Harvard Law School’s International Human Rights Clinic, of which I was the lead author, shows why fully autonomous weapons would fail both prongs of the test laid out in the Martens Clause. We conclude that the only adequate solution for dealing with these potential weapons is a preemptive ban on their development, production, and use. More than 70 countries will convene at the United Nations in Geneva from August 27 to 31 to discuss what they refer to as lethal autonomous weapons systems. They will meet under the auspices of the Convention on Conventional Weapons, a major disarmament treaty. To avert a crisis of morality and a legal vacuum, countries should agree to start negotiating a treaty prohibiting these weapons in 2019. (2018) source Unverified