Russia Ukraine war, page-117479

cost of course is an inhibiting factor to some degree and of course big diff between having a few strategic nukes to having thermonuclear devices and a good weapons delivery sytem ,(and if you have that then you need good missile defense as well as a threat becomes also a target )

In 2021, the United States spent approximately 44 billion U.S. dollars on nuclear weapons, the highest of any country in the world. China spent the second-highest amount, at nearly 12 billion dollars, while Russia spent the third most at nearly nine billion dollars. Russia is also the country with the highest number of nuclear warheads in the world.

so how russia got off so cheaply makes you doubt the quality of the maintainance