Many nations, including Taiwan, Canada, South Korea, Japan, Saudi Arabia, and European states, are scrutinizing the reliability of the United States as an ally. These concerns arise amidst various geopolitical dynamics.

On September 27, 2026, a notable meeting took place at the National Archives with U.S. President Donald Trump and Chinese President Xi Jinping in attendance. The event underscored a pattern seen by some: America under Trump appears to handle adversaries, even those equipped with nuclear capabilities, with more leniency than its traditional allies.

Such perceived unpredictability from the U.S. poses potential risks. It might propel other countries to consider self-reliance measures, potentially spurring nuclear proliferation as they seek reassurance for their own security.