[cocoablazing]

Both RF and US operate FBM forces as deterrent second-strike forces. This is not only the operational reality but also the treaty-regulated deployed configuration.

Optimizing deployment in the manner you describe is not aligned to the current mission of these forces / our deterrence relationship.

[cameldrv]

That's not necessarily true anymore. The Russians have deployed the Sineva and the Layner SLBMs which have GLONASS supplemental guidance. This makes no sense in a second strike scenario. The Trident II is also plenty accurate for a counterforce first strike and allows less reaction time than ICBMs.