Eighty years since the dawn of the nuclear age, which began with the first nuclear test in New Mexico, USA, and with the tragic atomic bombings of Hiroshima and Nagasaki, humanity faces a deep existential crisis. This crisis is much more unstable and unpredictable than the gravest Cold War confrontations. In 1955, when there were only three states with nuclear weapons and the first thermonuclear weapon was being developed, the Russell-Einstein Manifesto posed a profound question: “Shall we put an end to the human race; or shall mankind renounce war?” Today, with 9 states possessing nuclear weapons and several thousand thermonuclear devices, this question becomes an ultimate choice.