Editing First strike (nuclear strategy) (section)

===Hardening or mobilizing land-based nuclear assets===
In addition, land-based ICBM silos can be hardened. No [[missile launch facility]] can really defend against a direct nuclear hit, but a sufficiently hardened silo could defend against a near miss, especially if the detonation is not from a multimegaton [[thermonuclear weapon]]. In addition, ICBMs can be placed on road or rail-mobile launchers ([[RT-23 Molodets]], [[RT-2PM2 Topol-M]], [[DF-31]], [[Agni 5]], [[Agni 6]], [[MGM-134 Midgetman]]), which can then be moved around. As an enemy has nothing fixed at which to aim, that increases its survivability.