sentences:  When every missile carried only one poorly-guided warhead designing systems with massive warhead yields to cause a huge damage footprint, with the possibility of potentially destroying several nearby soft targets of opportunity and increasing the likelihood that the primary target was within the overlap of CEP and destruction circle the highest possible yield warhead for the missile was considered an advantage.The enemy being targeted a continent away was a low ratio of side effects to friendly areas, which contrasted the potential damage to enemy assets.As navigation technology improved the accuracy and many missiles and nearly all bombers were equipped with multiple nuclear warheads the trend was to reduce warhead yield both for weight and to give more flexibility in targeting with respect to collateral damage, target hardening also created a situation in which even a very large warhead with excellent targeting would still destroy only one target, gaining no advantage to its large weight and expense, as opposed to several smaller MIRVs.