Matthew Bunn in The Conversation:
For the first time in more than half a century, there are no binding restraints on the buildup of the largest nuclear forces on Earth. The New START treaty expired on Feb. 5, 2026, ending the last agreed limits on U.S. and Russian nuclear forces.
New START limited the number of strategic nuclear weapons the United States and Russia could deploy to 1,550 each. It also limited the missiles and bombers those warheads were loaded on, required on-site inspections and data exchanges, barred interference with satellite monitoring, and established a joint commission to discuss disputes. It did not limit the number of nuclear weapons each side could hold in reserve.
With China rapidly building up its nuclear forces, intense rivalry between the United States, China and Russia, and evolving technologies – from precision conventional weapons to artificial intelligence complicating nuclear balances – there is a real potential of an unpredictable three-way nuclear arms competition.
Such a competition could increase the danger of nuclear conflict, which I believe is higher than it has been in decades.
More here.
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