Associate Professor Zhang Yanjun was invited to attend the "Social Changes in Northeast Asia and International Law" seminar hosted by Chonbuk University in South Korea from November 26th to 28th,And delivered a speech titled "Nuclear Weapons and International Law" in English。It analyzes international treaties concerning the use or threat of nuclear weapons,Including the 1968 Treaty on the Non-Proliferation of Nuclear Weapons and the 1996 Comprehensive Nuclear-Test-Ban Treaty。Considering the lack of clear enforcement mechanisms and penalties for non-compliance,The effectiveness of the above international treaties is questionable。Also discusses the advisory opinion of Bet365 sportsbook reviewthe United Nations International Court of Justice on the Legality of the Use or Threat of Nuclear Weapons,And suggested that the International Court of Justice must have a clear explanation on the legality of the use of nuclear weapons in self-defense under extreme circumstances。Also discusses the country’s current practical efforts in nuclear non-proliferation,Special analysis of China,The situation of North Korea and Iran, Pointed out that China, as a representative of developing countries, should make more efforts in nuclear non-proliferation,And guide the promotion of North Korea、Reduced relations between Iran and other nuclear weapons states、Exchange and communication on the issue of limiting nuclear weapons。