Policy experts warn that renewed nuclear weapons testing could heighten global tensions, with many suggesting the world is on the brink of a new arms race. While some experts believe recent comments from former United States President Donald Trump may not drastically shift the situation, all agree that the threat of nuclear conflict is rising. Factors contributing to this risk include ongoing conflicts involving nuclear powers, such as the war in Ukraine, and regional tensions in places like South Asia and the Korean peninsula. The impending expiration of the last major nuclear treaty between the United States and Russia further adds to concerns about unchecked nuclear proliferation.