The move, though expected, is evidence of the deep chill between the United States and Russia, whose ties are at their lowest level since the 1962 Cuban missile crisis over the war in Ukraine and what Moscow casts as Washington's attempts to stymie the emergence of a new multipolar world order.
Nor, they say, will the move change the nuclear posture of Russia, which has the world's largest nuclear arsenal, or the way it shares information about its nuclear activities as Moscow will remain a treaty signatory. Post-Soviet Russia has not carried out a nuclear test. The Soviet Union last tested in 1990 and the United States in 1992. No country except North Korea has conducted a test involving a nuclear explosion this century.
It is part of a disturbing trend in recent years that has seen arms control pacts scrapped or suspended, he said last month on X.