Croatia ratifies crime of aggression amendments: On 20 December, Croatia deposited its instrument of ratification of the Kampala amendments with the Office of Legal Affairs of the United Nations. Like 12 other States before it, Croatia chose to ratify both sets of Kampala amendments – pertaining to war crimes and the crime of aggression – simultaneously. It had already implemented the amendments into its domestic law earlier this year. Croatia is the 10th State to ratify the amendments in 2013, the third Eastern European State to do so, and will be the 13th State Party to the crime of aggression amendments. The Kampala amendments for the crime of aggression will, once activated, allow the International Criminal Court to prosecute individuals for the most severe form of the illegal use of force. They are complementary to the prohibition on the use of force enshrined in the UN Charter.