Russian officials increasingly discuss nuclear option as Ukraine talks stall

A growing number of Russian officials believe President Vladimir Putin could eventually resort to tactical nuclear weapons as a last resort in Ukraine, Bloomberg reported Wednesday, as Kremlin insiders described a widening debate over how far Moscow could escalate the war.

The assessment does not mean Russia is preparing to use a nuclear weapon. There is currently no sign of preparations for a nuclear strike, and outside experts continue to assess such a move as unlikely. Instead, Moscow is weighing a more immediate escalation involving heavier conventional ballistic missile attacks on Kyiv and infrastructure in other Ukrainian cities, according to people close to the Kremlin.

The report comes as diplomatic efforts to end the war remain stalled. Russian officials increasingly see few options other than greater military pressure to achieve Moscow’s objectives. Three people close to the Kremlin said Russia believes negotiations have effectively returned to square one and that sanctions and Ukrainian attacks on Russian energy and logistics sites will not force Putin to end the war.

Russia has publicly maintained that it remains open to negotiations, but only on terms that account for what Moscow calls the “realities on the ground.” Deputy Foreign Minister Sergei Ryabkov said last week that progress would depend in part on Washington influencing Ukraine and its European allies. U.S. Secretary of State Marco Rubio has acknowledged that a quick breakthrough appears unlikely.

Against that backdrop, people close to the Kremlin told Bloomberg that discussion among Russian hard-liners about possible nuclear use has become more frequent. The sources said some officials increasingly believe Putin could choose a tactical nuclear strike if he concluded the alternative was military defeat.

That remains a worst-case scenario, not an indication that a decision has been made. Tactical, or nonstrategic, nuclear weapons are generally intended for shorter-range use within a theater of war, rather than the long-range strategic strikes associated with intercontinental nuclear forces. The term covers weapons with widely varying yields and delivery systems, meaning a “tactical” weapon could still cause mass casualties, radioactive contamination and a major international crisis.

Any Russian nuclear strike would also break an unwritten rule that has held since the United States used atomic bombs against Hiroshima and Nagasaki in August 1945. No nuclear weapon has been used in warfare since.

Western governments have treated that possibility as one of the most dangerous escalation risks of the war since Russia launched its full-scale invasion in February 2022.

U.S. intelligence officials believed there was a genuine risk of Russian nuclear use during Ukraine’s successful counteroffensives in late 2022, according to former CIA Director William Burns. By 2024, however, U.S. intelligence assessments continued to judge a Russian nuclear attack unlikely, even as Moscow stepped up its threats and Washington loosened restrictions on Ukraine’s use of American weapons against targets inside Russia.

Putin has repeatedly used Russia’s nuclear arsenal as part of his warnings to Ukraine and its Western supporters. In November 2024, he approved a revised nuclear doctrine that broadened the circumstances under which Moscow says it could consider nuclear use. The policy allows for a possible nuclear response to some major conventional attacks and treats aggression by a nonnuclear country supported by a nuclear power as a potential joint attack.

Those changes heightened Western concern, but U.S. officials said at the time they saw no intelligence requiring Washington to alter its own nuclear posture. Analysts have also noted that actual preparations for a Russian nuclear strike would likely produce military and intelligence indicators beyond political rhetoric.

Russia would also risk damaging some of its most important international relationships. China and India have strongly warned Putin against using nuclear weapons. Both countries have maintained close economic ties with Moscow during the war and carry far more influence with the Kremlin than most Western governments.

China has repeatedly made its position public. President Xi Jinping said in November 2022 that the international community should oppose both the use and threat of nuclear weapons and prevent a nuclear crisis over Ukraine. Beijing later reiterated that nuclear war “must never be fought.”

India has taken a similar public line. The G20 declaration adopted in Bali in 2022, where India played a central diplomatic role, said the use or threat of nuclear weapons was inadmissible. India has repeated that position in later international statements on Ukraine. Former CIA Director Burns said in late 2022 that concerns raised by Xi and Indian Prime Minister Narendra Modi appeared to have an impact on Moscow’s nuclear rhetoric.

The distinction between rhetoric and military preparation remains critical. Russia possesses the world’s largest overall nuclear inventory, and its strategy includes options ranging from limited nuclear employment to large-scale strategic attacks. But analysts have long questioned what Moscow would gain militarily from a nuclear strike in Ukraine, particularly on a dispersed battlefield where conventional missiles, drones and glide bombs can already inflict major damage without triggering the political consequences of nuclear use.

For now, the data points to conventional escalation as the more immediate danger. Moscow is considering intensified ballistic missile attacks on Kyiv, including the center of the capital, as well as infrastructure elsewhere in Ukraine.

The nuclear discussion inside Russia nevertheless adds another layer of risk to a war now deep into its fifth year. Even without evidence of preparations for a strike, growing talk of nuclear use among officials and hard-liners underscores why Washington, European governments and Russia’s partners in Beijing and New Delhi continue to treat any movement toward the nuclear threshold as a potential turning point in the conflict.