Russia will not use nuclear weapons in Ukraine, because doing so would not be militarily "reasonable," Colonel Margo Grosberg of the Estonian military's defense intelligence center told reporters on Friday. Nevertheless, Western pundits and politicians have repeatedly invoked warnings of nuclear war.

"I stress that in military terms, the use of this type of a weapon is not reasonable in any way, it would not achieve an effect," Grosberg said, according to Estonia's ERR news broadcaster. However, amid reports in the British media that Moscow is preparing for exercises involving its nuclear forces, he added that "the nuclear threat must be kept in mind, but it is not very large."

The Kremlin dismissed the British report, saying it would not partake in "nuclear rhetoric" with the West.

Talk of a possible Russian nuclear strike on Ukraine has reached fever pitch in the Western media in recent weeks, with American spies, diplomats, and President Joe Biden himself discussing such a strike as a realistic possibility. Speaking at a fundraiser in Washington on Thursday evening, Biden declared that "we have a direct threat of the use [of a] nuclear weapon if in fact things continue down the path they are going," warning that a nuclear detonation would lead to "Armageddon."

Meanwhile, Ukrainian President Vladimir Zelensky called on Thursday for NATO to launch "preemptive strikes" against Russia during a discussion on nuclear weapons. While Zelensky's aides later said the Ukrainian president was not referring to nuclear attacks, Kremlin spokesman Dmitry Peskov said the statement amounted to an attempt to spark a world war, which would lead to "unforeseeable disastrous consequences."