This research aims to discuss the national security measures under international law and the threats to peace and security, now-days which include not only wars and conflicts at the international level but also terrorism, environmental breakdown and infectious diseases, etc. Infectious diseases are non-traditional threats to national security while at the same time they are threatening international peace and security. With the emergence and rapid spread of the (Covid-19), it has become noticeable threat to the international community and has political, economic, and health impacts. Therefore, this research focuses on the effects of the Corona-virus and the role of international and regional organizations in confronting it. It also indicates incompatibility of international co-ordination, especially the major countries in facing this epidemic. Consequently, this led to the failure of the political blocs that formed in the second half of the twentieth century and split some of them, as the European and African Union, the Arab League and other formations in other areas of the world. Key words: coronavirus (COVID-19), National Security, International and Peace Security.
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