The role of nuclear weapons in global affairs is to act as a deterrent against potential aggression by other countries. By possessing nuclear weapons, a country can exert military power and influence on the world stage, as well as ensure its own security and defense. The threat of nuclear weapons also shapes diplomatic relationships and negotiations between countries, as they seek to avoid conflict that could escalate to a nuclear war. Overall, nuclear weapons play a significant and influential role in shaping international politics and security dynamics.
