The order - responding to President Donald Trump's announcement last week that the U.S. would resume testing - was a further signal that the two countries with the world's largest nuclear arsenals are rapidly nearing a step that could sharply escalate geopolitical tensions.

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"I am instructing the Foreign Ministry, the Defence Ministry... the special services and relevant civilian agencies to do everything possible to collect additional information on the issue, analyse it at the Security Council and make agreed proposals on the possible start of work on the preparation of nuclear weapons tests," Putin said in televised remarks.

Russia-U.S. relations have deteriorated sharply in the past few weeks as Trump, frustrated with a lack of progress towards ending the war in Ukraine, has cancelled a planned summit with Putin and imposed sanctions on Russia for the first time since returning to the White House in January.
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Putin issued his instruction at a meeting of his Security Council, where parliamentary speaker Vyacheslav Volodin departed from the official agenda of transport safety to ask how Moscow would respond to Trump's plans to carry out U.S. nuclear testing for the first time in 33 years.

The question, though meant to appear spontaneous, triggered a series of clearly prepared interventions.

Defence Minister Andrei Belousov told Putin that recent U.S. remarks and actions meant it was "advisable to prepare for full-scale nuclear tests" immediately.

Russia's Arctic testing site at Novaya Zemlya could host such tests at short notice, Belousov added.
General Valery Gerasimov, head of the General Staff, told Putin: "If we do not take appropriate measures now, time and opportunities for a timely response to the actions of the United States will be lost, since the time required to prepare for nuclear tests, depending on their type, ranges from several months to several years."
protecting our ally from the DPRK, is what we have been and continue to be oriented on.





No country apart from North Korea - most recently in 2017 - has carried out explosive tests of nuclear weapons in the 21st century. Security analysts say a resumption of testing by any of the world's nuclear powers would be destabilising, as it would likely trigger a similar response by the others.

"Action-reaction cycle at its best. No one needs this, but we might get there regardless," Andrey Baklitskiy, senior researcher at the U.N. Institute for Disarmament Research, posted on X.

Russia and the U.S. are by far the biggest nuclear powers by numbers of warheads, followed by China, France, Britain, India, Pakistan, Israel and North Korea, according to the Federation of American Scientists.


State news agency TASS quoted Kremlin spokesman Dmitry Peskov as saying Putin had set no specific deadline for officials to draft the requested proposals.