Can be avoided by thirty second delay to launching the next missile. We are very concerned about what is being called "first strike" that is a sudden massive multiple impact by timed launch to deliberately or even accidentally stop our ecosystem by orbit alteration.
Dealing with the US requires Total Subversion so that intercept can no longer be held back by political clout. local intercept, intercept, local detonation at silos, buffering & sabotage are the main antidotes in that order.
It's the timing for simultaneous impact, & massive Tsunami.