В последнее время мир стал свидетелем целой серии международных конфликтов, которые серьезно подорвали усилия ООН, направленные на поддержание мира и безопасности. Выход США из Совместного всеобъемлющего плана действий, подписанного Ираном, США, Францией, Британией, Россией, Китаем и Германией в 2015 году, может привести к тяжелым последствиям как на региональном, так и на международном уровне. В частности, под вопросом может оказаться планируемая денуклеаризация Корейского полуострова.This study reveals two aspects of the growing large-scale arms race on earth and in space, as well as the efforts of the United Nations to solve this problem. In the first section, The destructive arms race knows no borders , the author asks a logical and simple question why not to use the billions of dollars that capitalist countries spend on weapons in the interests of ordinary people living in poverty and dying of hunger. He gives specific proves that show a scale of children and adults disaster, focuses on the threat of nuclear proliferation and the need to implement the agreements reached in the UN on this issue, calls for doing everything possible to prevent the exchange of nuclear strikes and the consequences of the disaster as a result of an accident, miscalculation or even insane intention. The second section Is outer space the common heritage of mankind in danger emphasizes that the militarization of space is becoming increasingly important in the sphere of the US interests. This is evidenced by D. Trumps recent statement about Americas intention to dominate in space the next area of military action . Attention is drawn to the fact that Russia and China have tried several times in the UN to ban all types of weapons in outer space, but these attempts were sabotaged by the US and its supporters. The author believes the UN should adopt a Peace Treaty that would include the elimination of all types of weapons from space.