The announcement by Donald Trump on October 29, 2025 that the United States would restart nuclear weapons testing—abandoning a moratorium since 1992—has triggered sharp global criticism. According to his statement, he ordered the Department of Defense (referred to as “Department of War” in the post) to begin tests immediately, citing concerns about Russian and Chinese nuclear programmes. Many analysts noted this move reverses decades of U.S. policy, and raises serious risks of a renewed arms race and increased geopolitical instability.
International reactions have been overwhelmingly negative. Experts point out that the Comprehensive Nuclear‑Test‑Ban Treaty (CTBT), adopted in 1996, aims to end nuclear explosions and is seen as foundational for global peace and security. Moreover, countries and civil society warn that U.S. testing could undermine non-proliferation efforts and embolden other states to resume their own nuclear tests. Some comment that even sub-critical tests—or just signalling them—can destabilise the status quo.