According to a UK newspaper report, former President Donald Trump is seriously considering withdrawing the United States from the North Atlantic Treaty Organization (NATO). The news has spurred intense debate, amidst concerns about the effects on global security architecture and balance of power. This move, if it transpires, might significantly reshape international dynamics, specifically US-European alliances.

In Japan, the US’s potential withdrawal from NATO is widely seen as an indicator of the shift in global power dynamics and might influence the boost in Japan's self-defense abilities. Japan, a close ally of the United States, has long relied on the US for its security. Thus, any potential change in American foreign policy raises concerns in Japan about its security dynamics and influences its diplomatic position.

In the US and EU, the potential withdrawal of the US from NATO is met with mixed reactions. The EU, heavily reliant on the US for its security in NATO, sees this as a worrying development. However, some in the US view this as a step towards reducing America's global military commitments, a standpoint that challenges traditional bipartisan support for NATO.