But closer to 1500 operationally deployed, and if they should launch any significant number of them, a substantial portion of the rest of the operationally deployed nukes in the world will be landing in Russia targeted and destroying any capacity they have to use any they have that weren't ready and deployed in the first strike.
Which is why if they use any significant number, even as a first strike, it will largely be for a counterforce strike doing the same thing to other nuclear powers, because who wants to be in a bunker without usable nukes when the guys you just nuked are in their bunker with usable nukes.
But closer to 1500 operationally deployed, and if they should launch any significant number of them, a substantial portion of the rest of the operationally deployed nukes in the world will be landing in Russia targeted and destroying any capacity they have to use any they have that weren't ready and deployed in the first strike.
Which is why if they use any significant number, even as a first strike, it will largely be for a counterforce strike doing the same thing to other nuclear powers, because who wants to be in a bunker without usable nukes when the guys you just nuked are in their bunker with usable nukes.