国防部奉劝日方：不要搬起石头砸自己的脚！

Group 1 - The core viewpoint of the article emphasizes China's sovereignty over the Diaoyu Islands and criticizes Japan's military expansion and nuclear ambitions, urging Japan to refrain from actions that could escalate tensions [3][4]. Group 2 - The article reports that Chinese Coast Guard vessels have been present in the Diaoyu Islands area for 356 days as of the end of 2025, surpassing the previous year's record of 355 days, indicating increased patrol activity [3]. - Japan's government is reportedly considering nuclear capabilities and has significantly increased its defense budget for projects aimed at enhancing security cooperation with Southeast Asian countries, including the provision of advanced military equipment [4].