Due to this, fuelling the rocket took 4.5 minutes, which would have made it useless as a rapid response to an attack. The missile was vulnerable to a pre-emptive nuclear strike, launched without warning or in the absence of any heightening of tension sufficient to warrant readying the missile.
Due to this, fueling the rocket took 4.5 minutes, rendering it ineffective as a rapid response to an attack. The missile was susceptible to a preemptive nuclear strike, launched without warning or in the absence of any escalation sufficient to warrant preparing the missile.