The world appears to be entering a new era of nuclear tension. This comes as several longstanding arms-control agreements fall away. Nations that previously opposed holding nuclear weapons now reassess their positions.

The expiration of strategic arms reduction treaties is a critical factor. The START treaty, for example, no longer holds the influence it once did. Coupled with this, China remains firm in its refusal to engage in new arms control negotiations.

South Korea and Japan are examples of countries now contemplating nuclear armament. Their considerations come amidst rising regional insecurities and the declining effectiveness of existing treaties.

These developments impact the symbolic Doomsday Clock, currently at 85 seconds to midnight. This time represents the closest humanity has ever been to potential global catastrophe, highlighting heightened global tensions.