The United States, Russia and China are now aggressively pursuing a new generation of smaller, less destructive nuclear weapons. The buildups threaten to revive a Cold War-era arms race and unsettle the balance of destructive force among nations that has kept the nuclear peace for more than a half-century.
It is, in large measure, an old dynamic playing out in new form as an economically declining Russia, a rising China and an uncertain United States resume their one-upmanship.
American officials largely blame the Russian president, Vladimir V. Putin, saying his intransigence has stymied efforts to build on a 2010 arms control treaty and further shrink the arsenals of the two largest nuclear powers. Some blame the Chinese, who are looking for a technological edge to keep the United States at bay. And some blame the United States itself for speeding ahead with a nuclear “modernization” that, in the name of improving safety and reliability, risks throwing fuel on the fire.
President Obama acknowledged that danger at the end of the Nuclear Security Summit meeting in Washington early this month. He warned of the potential for “ramping up new and more deadly and more effective systems that end up leading to a whole new escalation of the arms race.”
For a president who came to office more than seven years ago talking about eventually ridding the world of nuclear weapons, it was an admission that an American policy intended to reduce the centrality of atomic arms might contribute to a second nuclear age.
One of the few veterans of the Cold War in his administration, James R. Clapper, the director of national intelligence, told the Senate Armed Services Committee during his annual global threat assessment, “We could be into another Cold War-like spiral.” Yet it is different from Mr. Clapper’s earlier years, when he was an Air Force intelligence officer weighing the risks of nuclear strikes that could level cities with weapons measured by the megaton.
Adversaries look at what the United States expects to spend on the nuclear revitalization program — estimated at up to $1 trillion over three decades — and use it to lobby for their own sophisticated weaponry.
Moscow is fielding big missiles topped by miniaturized warheads, and experts fear that it may violate the global test ban as it develops new weapons. According to Russian news reports, the Russian Navy is developing an undersea drone meant to loft a cloud of radioactive contamination from an underwater explosion that would make target cities uninhabitable.
Learn more: Race for Latest Class of Nuclear Arms Threatens to Revive Cold War
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