Аннотация:The article is devoted to problems of investigating changes in the Criminal Code of the RussianFederation and the criminal legislation of Germany, establishing responsibility for the act of international terrorismand aggression accordingly. The authors investigate the Criminal Code on crimes of an international character of26.06.2002, § 13- The act of aggression, as well as art. 361 of the Criminal Code of the Russian Federation, whichestablishes responsibility for an act of international terrorism. The authors analyze the notion of aggression givenin resolution No. 3314 (XXIX) of the General Assembly of 14 December 1974. With reference to the act of internationalterrorism, an example is given of Russian law enforcement practice. The authors come to the conclusionthat it is necessary to improve the criminal code of the Russian Federation, taking into account the legislativeexperience of Germany