Russia’s full-scale invasion of Ukraine has laid bare several uncomfortable realities about nuclear weapons. By slamming the door shut on the post-Cold War holiday from history, the war has unquestionably ushered in a new era of great-power nuclear competition. Gone are the more tranquil days when Russia was considered a reliable arms-control partner, and China just a rudimentary nuclear power. Moscow now exhibits no inhibitions about rattling every nuclear saber at its disposal, and Beijing has undertaken a rapid nuclear expansion to advance its revisionist agenda in the Asia-Pacific and beyond.
But the Russo–Ukrainian War has also revealed another unpleasant reality closer to home: America’s nuclear rhetoric is woefully inadequate for a new era of great-power competition. U.S. leaders must redress the way they talk about nuclear war — or risk losing the public support required to compete in the nuclear shadow.






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