Generative Artificial Intelligence can generate information similar to that produced by humans, with the added benefits of low cost, high efficiency, and versatility. To study the international security implications of this disruptive technology, cognitive warfare effectiveness and characteristics should be selected as intermediate variables, and the research should be conducted through the cognitive warfare approach. In the context of cognitive warfare, Generative Artificial Intelligence applications can rapidly generate huge amounts of cognitive warfare information, improving combat effectiveness. Surpassing the limitations of information generated by human being, it enables the rapid evolution of cognitive warfare information and causes long-term information pollution, thereby promoting the evolution of new intelligent cognitive warfare. The new, technology-driven cognitive warfare may deepen the division and confrontation between countries and increase the risk of conflicts.