Not all ballistic missiles are nuclear, but anyone throwing one will expect that the recipients will assume it's nuclear and be likely to respond in kind and no

Not all ballistic missiles are nuclear, but anyone throwing one will expect that the recipients will assume it's nuclear and be likely to respond in kind and not wait to find out which. So who would want to launch a ballistic missile without a nuclear payload, if the response is probably nuclear? The US has tried to build conventional missiles for fast global strike capability but it's somewhat complicated by the Russians being unable to distinguish them from nuclear ballistic missiles...