Abstract
The question is: How is a global peace order possible in the shape of an international legal system? The article focuses on the problems of international law within the present system of the UN and tries to actualise the Kantian concept of perpetual peace (1795), with regard to positions of international lawyers. A peaceful international order must have the means to protect against unlawful violence, even by armed forces, e.g. to intervene against gross violations of fundamental human rights. It is necessary that even the great powers are obliged to act only within this legal framework. Unilateralism must be abolished in a continuing process. ‘Good leadership under law, not above the law’ (J. Delbrück)