Back in 2005, a decade ago, we predicted that advances in missile defence would necessitate using ten times what would normally be allocated to targets to ensure that one of them would get through.
Russia just rebooted the missile race as of now. Anybody who is not rolling them off assembly lines is going to get saturated with them in World War III. I expect we will also see a return to the days of ever increasing megatonnages to encourage a wider radius of effect, so that a missile only has to get within range to be effective.
Russia still has some of the best engineers in the world but America is a post-modernist dump where the majority of the population cannot even read and write at an adult level. They are going to get creamed in the third World War but maybe that is exactly what the elites want.