The United Nations Security Council will vote on a resolution on Wednesday, March 22, that calls for all nations to prevent an arms race in outer space. The resolution, sponsored by the United States and Japan, is expected to be vetoed by Russia. The resolution urges countries not to develop or deploy weapons of mass destruction, such as nuclear arms, in space. It also emphasizes the need for further measures to verify compliance with the Outer Space Treaty, which prohibits the deployment of nuclear weapons in orbit or on celestial bodies. The UN Secretary-General, António Guterres, has warned that geopolitical tensions have escalated the risk of nuclear warfare to its highest point in decades.