The legislation of Ukraine regulating activities related to the development of armaments and military equipment, as well as the implementation of international military-technical cooperation, concerning the responsibility provided for violation of intellectual property rights in the sphere of defense is considered. The importance of improving the legislation on the settlement of issues of responsibility for violations of intellectual property in the defense sector and the proposals for improving it are elaborated.Ukraine as an independent state is undergoing a rather difficult stage of its formation, overcoming many problems on its way. However, in general, they are associated with one problem — the lack of responsibility for their actions or inaction, the decisions taken or vice versa has not been taken, and at all levels — from a citizen to the president. This is what generates corruption and theft of the budget, even in the war, repairing roads in the rain or snow, and all our other disadvantages. Therefore, as long as we are not responsible for the violations committed, regardless of party affiliation or family and other ties, radical changes in the public life of our state will not occur. This also applies to violations of intellectual property rights.During the years of independence, Ukraine has not really formed a state policy on intellectual property, nor has developed strategies for the development of this important segment of public life. At the beginning, we laid the foundation and built our own structure, and for more than 10 years we reformed what was not completed. There is no strategic vision of what we want to achieve, so all changes and reforms take place in a haphazard and chaotic way. And because of this, the number of violations only increases, so our state can never completely get rid of the stigma of one of the biggest violators of intellectual property rights.The problem of responsibility for violating intellectual property rights is particularly important in the defense sector, although not everyone understands it. Indeed, when developing of armaments and military equipment and its subsequent using, especially when exported to other countries, significant financial losses for authors and producers, as well as image losses for the whole state are possible. And with the transition of our military-industrial complex from the repair and modernization of armaments and military equipment of Soviet standards, to the development of the latest models of own samples of armaments and military equipment or in cooperation with foreign partners, the issue of responsibility for the violation of intellectual property rights has become even more acute.The current state of intellectual property protection in the defense sector indicates the need to improve the regulation of issues of the formation and implementation of state policy, the principles of state control in this area, as well as the powers and responsibilities of all actors involved in the defense sector.The imperfection of the legal framework gives the legal possibility of unauthorized use of objects of intellectual property rights created during the execution of the state defense order, including (especially) the implementation of the military-technical cooperation. This is facilitated by the lack of responsibility for actions that create a threat of violation of intellectual property rights or contribute to the violation.The great amount of all violations can be prevented by state contractors with proper work on a contractual basis in the event of a responsible attitude towards ensuring national interests and proper performance of their functions by public officials. At the moment, possible actions or inaction of state-owned customers that directly violate the norms of intellectual property rights, or indirectly, the commission of which seems to have no direct relation, but leads in the future to serious violations of intellectual property rights.For solution of this problem is necessary to systematically and comprehensively approach the improvement of intellectual property legislation, especially regarding the definition of liability for violations in this area in the development and use of armaments and military equipment.